Scientific and Medical Antiques and Vintage Equipment

Medical & Science Antiques

Antique Slide Rules

A new selection of vintage slide rules at competitive prices every day. If you're looking for a Pickett slide rule with case, Faber Castell or Keuffel & Esser circular spiral slide rule, Sun Hemmi bamboo slide rule with case, Dietzgen binary slide rule in box, USSR military slide rules, or any other collectible slide rule, this is the place to find new opportunities every day.
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1910-1921 Keuffel & Esser Co. Polyphase Slide Rule 4051 20" (Pat Date 1-17-1915) Buy Now »
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1910-1921 Keuffel & Esser Co. Polyphase Slide Rule 4051 20" (Pat Date 1-17-1915)

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10 mins
Vintage Weather Metrics Guide Rain Snow East Central Breeders Waupun WI 1977 Buy Now »
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Vintage Weather Metrics Guide Rain Snow East Central Breeders Waupun WI 1977

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$13.45
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17 mins
  • Item Condition: Used
  • Item Location: Madison, WI, USA ZIP 537**
  • Shipping Type: Free
  • Handling Time: 1 business day
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  • Seller: lilwillyz233   Feedback: 22,460 / 99.9%  Top-Rated Seller Top-Rated Seller
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Vintage 1900 ‘s Keuffel & Esser Co Mannheim Slide Rule 4041 in Original Box Buy Now »

Vintage 1900 ‘s Keuffel & Esser Co Mannheim Slide Rule 4041 in Original Box

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21 mins
  • Item Condition: Used
  • Item Location: Amissville, VA, USA ZIP 201**
  • Shipping Type: Calculated
  • Handling Time: 1 business day
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  • Seller: mtravisc   Feedback: 565 / 100%  Top-Rated Seller Top-Rated Seller
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Sundstrand Broaching Guide Slide Rule 1959 Printed In The USA Buy Now »

Sundstrand Broaching Guide Slide Rule 1959 Printed In The USA

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23 mins
  • Item Condition: Used
  • Item Location: Jackson, NJ, USA ZIP 085**
  • Shipping Type: Calculated
  • Handling Time: 1 business day
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  • Seller: leeart   Feedback: 789 / 99.7%  Top-Rated Seller Top-Rated Seller
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1948 Keuffel & Esser Slide Rule Manual No N4080 Manual Only Buy Now »
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1948 Keuffel & Esser Slide Rule Manual No N4080 Manual Only

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$19.88
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24 mins
  • Item Condition: Used
  • Item Location: Roseville, CA, USA ZIP 957**
  • Shipping Type: Free
  • Handling Time: 3 business days
  • Seller: jakeandlexus   Feedback: 9,073 / 99.5%  Top-Rated Seller Top-Rated Seller
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Firth Sterling Firthite Slide Rule 1969 Printed In The USA Buy Now »

Firth Sterling Firthite Slide Rule 1969 Printed In The USA

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29 mins
  • Item Condition: Used
  • Item Location: Jackson, NJ, USA ZIP 085**
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  • Handling Time: 1 business day
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  • Seller: leeart   Feedback: 789 / 99.7%  Top-Rated Seller Top-Rated Seller
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VINTAGE FREDERICK POST #1446 SLIDE RULE JAPAN SUN HEMI  11 INCH WITH CASE Buy Now »

VINTAGE FREDERICK POST #1446 SLIDE RULE JAPAN SUN HEMI 11 INCH WITH CASE

Buy: $20.00 Ships:
$4.95
$24.95
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32 mins
  • Item Condition: Used
  • Item Location: Wellington, NV, USA ZIP 894**
  • Shipping Type: Flat Rate
  • Shipping Cost: $4.95
  • Handling Time: 3 business days
  • Seller: haarhouse   Feedback: 11,706 / 99.8%
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vintage concrete estimator slide rule aurora plano montgomery Illinois Buy Now »
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vintage concrete estimator slide rule aurora plano montgomery Illinois

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$18.00
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34 mins
1917 Mannheim And The Duplex Slude Rules Complete Manual Buy Now »

1917 Mannheim And The Duplex Slude Rules Complete Manual

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$18.00
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35 mins
vintage Weber SCOLA No. 4285-P 10" SLIDE RULE with sleeve SLIPSTICK USA Buy Now »

vintage Weber SCOLA No. 4285-P 10" SLIDE RULE with sleeve SLIPSTICK USA

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53 mins
  • Item Condition: Used
  • Item Location: Topsfield, MA, USA ZIP 019**
  • Shipping Type: Calculated
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  • Handling Time: 1 business day
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  • Seller: origins21   Feedback: 3,088 / 100%
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Vintage Lawrence Engineering Service 8" Wood Slide Rule With Original Case Buy Now »

Vintage Lawrence Engineering Service 8" Wood Slide Rule With Original Case

Buy: $19.99 Ships:
$4.25
$24.24
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1 hr
1 min
  • Item Condition: Used
  • Item Location: Minneapolis, MN, USA ZIP 554**
  • Shipping Type: Flat Rate
  • Shipping Cost: $4.25
  • Handling Time: 2 business days
  • Seller: mttbike   Feedback: 827 / 99.2%
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VINTAGE BRUNING SET #2401 (31345-B10-Y) Buy Now »

VINTAGE BRUNING SET #2401 (31345-B10-Y)

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$3.95
$18.90
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1 hr
1 min
  • Item Condition: Used
  • Item Location: West Berlin, NJ, USA ZIP 080**
  • Shipping Type: Flat Rate
  • Shipping Cost: $3.95
  • Handling Time: 3 business days
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  • Seller: united140   Feedback: 8,448 / 99.5%
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The Frederick Post No. 1444 Slide Rule in Sleeve ~ Sun Hemmi Japan Buy Now »

The Frederick Post No. 1444 Slide Rule in Sleeve ~ Sun Hemmi Japan

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1 hr
9 mins
  • Item Condition: Used
  • Item Location: Fairhaven, MA, USA ZIP 027**
  • Shipping Type: Calculated
  • Handling Time: 1 business day
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  • Seller: elithecat   Feedback: 1,394 / 100%
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Du Mont Slide Rule in Case ~ Zanesville Ohio DuMont Buy Now »

Du Mont Slide Rule in Case ~ Zanesville Ohio DuMont

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1 hr
18 mins
  • Item Condition: Used
  • Item Location: Fairhaven, MA, USA ZIP 027**
  • Shipping Type: Calculated
  • Handling Time: 1 business day
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  • Seller: elithecat   Feedback: 1,394 / 100%
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Greenleaf Corporation 1960 Machining Calculator Buy Now »

Greenleaf Corporation 1960 Machining Calculator

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1 hr
21 mins
  • Item Condition: Used
  • Item Location: Boyertown, PA, USA ZIP 195**
  • Shipping Type: Calculated
  • Handling Time: 2 business days
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  • Seller: alvi-hell   Feedback: 3,843 / 100%  Top-Rated Seller Top-Rated Seller
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Vintage Fredrick Post 1452 W Slide Ruler & Leather Case Buy Now »

Vintage Fredrick Post 1452 W Slide Ruler & Leather Case

Buy: $22.00 Ships:
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1 hr
34 mins
  • Item Condition: Used
  • Item Location: Sebring, FL, USA ZIP 338**
  • Shipping Type: Calculated
  • Handling Time: 1 business day
  • Seller: treasurehunters47   Feedback: 1,711 / 99.5%  Top-Rated Seller Top-Rated Seller
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Universal Circle Metric Converter Cup Handy Promotional Works Great Bid Now » Buy Now »

Universal Circle Metric Converter Cup Handy Promotional Works Great

Bid: $7.73
Buy: $10.15
Ships:
$6.41
$14.14
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1 hr
34 mins
  • Item Condition: Used
  • Item Location: Geneva, NY, USA ZIP 144**
  • Shipping Type: Flat Rate
  • Shipping Cost: $6.41
  • Expedited Shipping
  • Handling Time: 1 business day
  • Returns Accepted
  • Seller: nsjoblom27o5   Feedback: 617 / 100%
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Exide 1970 Lightguard emergency lighting system selector slide chart Buy Now »

Exide 1970 Lightguard emergency lighting system selector slide chart

Buy: $9.95 Ships:
$3.95
$13.90
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1 hr
38 mins
  • Item Condition: Used
  • Item Location: Freeland, MI, USA ZIP 486**
  • Shipping Type: Flat Rate
  • Shipping Cost: $3.95
  • Handling Time: 1 business day
  • Returns Accepted
  • Seller: bobbinder   Feedback: 14,695 / 100%  Top-Rated Seller Top-Rated Seller
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Vintage 1976 Universal English/SI ( Metric) Datalizer Calculator Slide Rule Buy Now »

Vintage 1976 Universal English/SI ( Metric) Datalizer Calculator Slide Rule

Buy: $6.50 Ships:
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1 hr
40 mins
  • Item Condition: Used
  • Item Location: Ravenna, MI, USA ZIP 494**
  • Shipping Type: Calculated
  • Handling Time: 1 business day
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  • Seller: radiumglass   Feedback: 8,473 / 99.6%  Top-Rated Seller Top-Rated Seller
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Vintage Circular Slide Rule Percentage Proportion Scale Cardboard 5 1/2” Buy Now »

Vintage Circular Slide Rule Percentage Proportion Scale Cardboard 5 1/2”

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1 hr
42 mins
  • Item Condition: Used
  • Item Location: Lakewood, CA, USA ZIP 907**
  • Shipping Type: Calculated
  • Handling Time: 2 business days
  • Seller: wepicks5   Feedback: 1,332 / 99.6%
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Paper manual only for Picket Trig Slide Rule vintage 1953 Buy Now »

Paper manual only for Picket Trig Slide Rule vintage 1953

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1 hr
45 mins
  • Item Condition: Used
  • Item Location: Phoenix, AZ, USA ZIP 850**
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  • Handling Time: 1 business day
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  • Seller: evenmorestuff   Feedback: 3,236 / 100%  Top-Rated Seller Top-Rated Seller
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Lot of 1947 Illinois Brick Company Modular Concrete Block Brick Scales Rulers Buy Now »

Lot of 1947 Illinois Brick Company Modular Concrete Block Brick Scales Rulers

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1 hr
50 mins
  • Item Condition: Used
  • Item Location: Medway, MA, USA ZIP 020**
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  • Handling Time: 1 business day
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  • Seller: coolstuff1966sale   Feedback: 3,728 / 100%
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Keuffel & Esser DECI-LON 68 1100 (Version 1) Slide Rule & Case  c 1947, 1961 Buy Now »

Keuffel & Esser DECI-LON 68 1100 (Version 1) Slide Rule & Case c 1947, 1961

Buy: $210.00 Ships:
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1 hr
51 mins
  • Item Condition: Used
  • Item Location: Eaton Rapids, MI, USA ZIP 488**
  • Shipping Type: Calculated
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  • Handling Time: 2 business days
  • Seller: mrcdeals   Feedback: 738 / 99.6%  Top-Rated Seller Top-Rated Seller
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Pegasus Division Koehring Co White Plastic Slide Rule Buy Now »

Pegasus Division Koehring Co White Plastic Slide Rule

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1 hr
52 mins
  • Item Condition: Used
  • Item Location: Kansas City, MO, USA ZIP 641**
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  • Handling Time: 1 business day
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  • Seller: caught-back-in-time   Feedback: 4,044 / 99.9%
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1977 Hubbell Wiring Device Selector NEMA Twist Lock Straight Blade Slide Rule Buy Now »

1977 Hubbell Wiring Device Selector NEMA Twist Lock Straight Blade Slide Rule

Buy: $10.29 Ships:
$3.49
$13.78
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2 hrs
  • Item Condition: Used
  • Item Location: Chattanooga, TN, USA ZIP 374**
  • Shipping Type: Flat Rate
  • Shipping Cost: $3.49
  • Expedited Shipping
  • Handling Time: 1 business day
  • Returns Accepted
  • Seller: bigridgecollectibles7   Feedback: 2,295 / 100%  Top-Rated Seller Top-Rated Seller
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Vintage Pickett SLIDE RULE model 20 Basic w/Leather Case Buy Now »

Vintage Pickett SLIDE RULE model 20 Basic w/Leather Case

Buy: $19.99 Ships:
$3.99
$23.98
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2 hrs
2 mins
  • Item Condition: Used
  • Item Location: Sellersville, PA, USA ZIP 189**
  • Shipping Type: Flat Rate
  • Shipping Cost: $3.99
  • Handling Time: 3 business days
  • Returns Accepted
  • Seller: may52866   Feedback: 1,140 / 97.1%
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1974 Alpha Fit Shrinkable Tubing Selector & Products Chart slide Rule chart 1223 Buy Now »

1974 Alpha Fit Shrinkable Tubing Selector & Products Chart slide Rule chart 1223

Buy: $2.49 Ships:
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2 hrs
4 mins
  • Item Condition: Used
  • Item Location: Medway, MA, USA ZIP 020**
  • Shipping Type: Calculated
  • Handling Time: 1 business day
  • Returns Accepted
  • Seller: coolstuff1966sale   Feedback: 3,728 / 100%
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Vintage Lafayette 99-70302 Slide Ruler with Hard Brown Leather Case Org manual Buy Now »

Vintage Lafayette 99-70302 Slide Ruler with Hard Brown Leather Case Org manual

Buy: $9.00 Ships:
$9.00
$18.00
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2 hrs
6 mins
  • Item Condition: Used
  • Item Location: Oradell, NJ, USA ZIP 076**
  • Shipping Type: Flat Rate
  • Shipping Cost: $9.00
  • Expedited Shipping
  • Handling Time: 3 business days
  • Seller: nojerseyshopper   Feedback: 742 / 100%  Top-Rated Seller Top-Rated Seller
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Coil Spring Calculator American Spring & Wire Specialty Co. Chicago Illinois Buy Now »

Coil Spring Calculator American Spring & Wire Specialty Co. Chicago Illinois

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2 hrs
7 mins
  • Item Condition: Used
  • Item Location: Medway, MA, USA ZIP 020**
  • Shipping Type: Calculated
  • Handling Time: 1 business day
  • Returns Accepted
  • Seller: coolstuff1966sale   Feedback: 3,728 / 100%
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Vintage Addiator Arithma With Case And Instructions & Stylus Made in Germany Bid Now » Buy Now »

Vintage Addiator Arithma With Case And Instructions & Stylus Made in Germany

Bid: $14.99
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2 hrs
10 mins
  • Item Condition: Used
  • Item Location: Bend, OR, USA ZIP 977**
  • Shipping Type: Calculated
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  • Handling Time: 2 business days
  • Returns Accepted
  • Seller: finding_deals   Feedback: 2,650 / 98.6%
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Vintage Post Slide Ruler Tool w/ Case 1447 Hemmi Japan Buy Now »

Vintage Post Slide Ruler Tool w/ Case 1447 Hemmi Japan

Buy: $14.44 Ships:
$6.00
$20.44
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2 hrs
19 mins
  • Item Condition: Used
  • Item Location: Dracut, MA, USA ZIP 018**
  • Shipping Type: Flat Rate
  • Shipping Cost: $6.00
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  • Handling Time: 2 business days
  • Seller: llou-2011   Feedback: 2,680 / 100%
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Vintage Pickett 1010-T Slide Rule Wilth Brown Leather Case    1010-T 1010-T Buy Now »
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Vintage Pickett 1010-T Slide Rule Wilth Brown Leather Case 1010-T 1010-T

Buy: $69.29 Ships:
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$69.29
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2 hrs
25 mins
  • Item Condition: Used
  • Item Location: Lakeport, CA, USA ZIP 954**
  • Shipping Type: Free
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  • Handling Time: 1 business day
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  • Seller: winchestermysterykitchen   Feedback: 7,161 / 99.1%  Top-Rated Seller Top-Rated Seller
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Sun Hemmi Log Log Bamboo Model 259 Engineering Slide Rule in Case Made in Japan Buy Now »

Sun Hemmi Log Log Bamboo Model 259 Engineering Slide Rule in Case Made in Japan

Buy: $59.00 Ships:
$1.69
$60.69
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2 hrs
27 mins
  • Item Condition: Used
  • Item Location: Springdale, AR, USA ZIP 727**
  • Shipping Type: Flat Rate
  • Shipping Cost: $1.69
  • Handling Time: 1 business day
  • Returns Accepted
  • Seller: centralcontinental   Feedback: 347 / 100%
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The K&E Log Log Duplex Trig Slide Rule Manual Buy Now »

The K&E Log Log Duplex Trig Slide Rule Manual

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2 hrs
34 mins
  • Item Condition: Used
  • Item Location: Indio, CA, USA ZIP 922**
  • Shipping Type: Calculated
  • Handling Time: 1 business day
  • Seller: davidacolemann   Feedback: 675 / 99%  Top-Rated Seller Top-Rated Seller
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Vintage Pickett & Eckel 271  Model 1010-T Slide Rule w/Pickett Leather Case Nice Buy Now »

Vintage Pickett & Eckel 271 Model 1010-T Slide Rule w/Pickett Leather Case Nice

Buy: $21.99 Ships:
$8.00
$29.99
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2 hrs
37 mins
  • Item Condition: Used
  • Item Location: Post Falls, ID, USA ZIP 838**
  • Shipping Type: Flat Rate
  • Shipping Cost: $8.00
  • Expedited Shipping
  • Handling Time: 3 business days
  • Seller: sossurplus   Feedback: 1,325 / 100%  Top-Rated Seller Top-Rated Seller
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Metric English Conversion Slide Rule Chart Barbey Electronics Advertising Buy Now »

Metric English Conversion Slide Rule Chart Barbey Electronics Advertising

Buy: $7.90 Ships:
$4.95
$12.85
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2 hrs
38 mins
  • Item Condition: Used
  • Item Location: Bloomingdale, GA, USA ZIP 313**
  • Shipping Type: Flat Rate
  • Shipping Cost: $4.95
  • Seller: dmac530   Feedback: 258 / 98.4%  Top-Rated Seller Top-Rated Seller
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FISHER CONTROLS PICKETT N 1041-GP UNIVERSAL VALVE SIZING RULE SLIDE RULE Buy Now »

FISHER CONTROLS PICKETT N 1041-GP UNIVERSAL VALVE SIZING RULE SLIDE RULE

Buy: $14.99 Ships:
$5.00
$19.99
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2 hrs
44 mins
  • Item Condition: Used
  • Item Location: Houston, TX, USA ZIP 770**
  • Shipping Type: Flat Rate
  • Shipping Cost: $5.00
  • Handling Time: 4 business days
  • Seller: onlymonthrufriday   Feedback: 15,031 / 99.4%
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Doric Slide Rule Instruction Book Calculations Instructions Vintage Manual 1939 Buy Now »

Doric Slide Rule Instruction Book Calculations Instructions Vintage Manual 1939

Buy: $77.50 Ships:
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$77.50
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2 hrs
49 mins
  • Item Condition: Used
  • Item Location: Santa Clarita, CA, USA ZIP 913**
  • Shipping Type: Calculated
  • Handling Time: 1 business day
  • Returns Accepted
  • Seller: rarehiker   Feedback: 343 / 100%  Top-Rated Seller Top-Rated Seller
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Vintage Keuffel & Esser K&E Slide Rule Leather Case Only--Green Buy Now »

Vintage Keuffel & Esser K&E Slide Rule Leather Case Only--Green

Buy: $5.95 Ships:
$4.95
$10.90
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2 hrs
52 mins
  • Item Condition: Used
  • Item Location: Sunset Beach, CA, USA ZIP 907**
  • Shipping Type: Flat Rate
  • Shipping Cost: $4.95
  • Handling Time: 1 business day
  • Seller: abner1941   Feedback: 4,157 / 99.4%  Top-Rated Seller Top-Rated Seller
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1966 A Key to Worlds Beyond Telescope Manual for Beginning Astronomers Tasco Inc Buy Now »

1966 A Key to Worlds Beyond Telescope Manual for Beginning Astronomers Tasco Inc

Buy: $17.63 Ships:
Based on Zip
$17.63
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2 hrs
58 mins
  • Item Condition: Used
  • Item Location: Ridgefield, WA, USA ZIP 986**
  • Shipping Type: Calculated
  • Handling Time: 1 business day
  • Returns Accepted
  • Seller: farmgurlscavenger   Feedback: 1,144 / 100%  Top-Rated Seller Top-Rated Seller
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