The Binary Slide Rule, circular slide rule

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  • Details
  • Description
Date Introduced
1930 ca.
Photographer
Richards, Mark
Dimensions
1/4 x 9 x 9 in.
Manufacturer
Gilson Slide Rule Company
Credit Line
Gift of Tom McIntyre
Copyright Owner
© Mark Richards
Location
United States
Keywords
Oughtred, William; Analog; Hand calculation
Object ID
X174.83B

This machinist’s rule includes rational and decimal fractions, such as ¾ and 0.75.