2 Engineering Slide Rules Leather Cases Patent 1900
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Dietzgen MANIPHASE Slide Rule manual
pickett trig slide rule
Sun Hemmi Slide Rule -- Japan
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1884 Thacher K&E Slide rule Engineering calculator ref
K & E Keuffel & Esser 620022 Drafting Planimeter
K & E Slide Rule N4081-3 20 Scales Keuffel & Esser Co +
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KEUFFEL & ESSER CO. SLIDE RULE WITH LEATHER CASE NEAT!
1937 book - The Slide Rule, by Chas. Hoare
KEUFFEL & ESSER CO. N.Y. SLIDE RULE PAT. 6-5-1900 LONG1
Two1955 K&E Silde Rule Manual Instruction Books 68 2047
SANS & STREIFFLE #311 SLIDE RULE w/ LEATHER CASE 12"
OMICRON 30" CAPACITY ELLIPSOGRAPH. TOP OF LINE MODEL
Pickett Vintage Slide Rule N109-ES Simplex Trig Rule
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SLIDE RULE TIE CLIP
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Vintage K & E, SP Sterling Slide Rule W/Leather Case NR
KEUFFEL&ESSER.CO DUPLEX DECITRIG N4081-3 1947 /CASE
KEUFFEL & ESSER CO. N.Y. SLIDE RULE PAT. 6-5-1900 10" L
Vintage Pickett Trainer Slide Ruler No.120 w/ case tool
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US PATENT for K&E SLIDERULE 1913 slide rule Keuffel Art
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US PATENT for K&E SLIDERULE 1913 slide rule Keuffel Art buy it $13.95
2 Keuffel and Esser slide rules rule buy it $15.00
POST Versalog slide rule kit w/ case, manual + extras buy it $65.00
US PATENT for K&E SLIDERULE 1913 slide rule Keuffel Art
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1908 Slide Rule Manual Circular Calculator Engineering
Pickett N-515-T Electronic Slide Rule CIE Logo W/Case
Faber-Castell Model Number 2/83N Slide Rule
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