Artifact Details

Title

Early Calculating Devices - Patent Application - "Operating Means for Calculations"

Catalog Number

102704300

Type

Still Image

Description

B&W image of a Patent Application for "Operating Menas for Calculations" Dec 22, 1925 1,566,650
G.C. Chase Filed Nov. 21, 1922 Has three figures showing how operations are carried out.

Dimensions

overall: 5 in x 4 in

Category

Identification photograph

Credit

Courtesy of Gwen Bell

Lot Number

X7413.2015