Artifact Details

Title

Duplex Slide Rule

Catalog Number

X170.83B

Type

Physical object

Date

1902

Manufacturer

Keuffel & Esser Company

Place Manufactured

U.S.

Identifying Numbers

Other number OCT.6.1891 patent date

Dimensions

3/8 x 11 x 1 1/4 in.

Category

Pre-computer: slide rule

Subject

Hand calculation; Analog; Oughtred, William

Credit

Gift of Tom McIntyre

Lot Number

X170.83A-C