Artifact Details

Title

Early Calculating Devices - Patent Application Figures

Catalog Number

102704302

Type

Still Image

Description

B&W image of a sheet from a Patent Application with several figures showing the electrical characteristics of the device being patented.

Dimensions

overall: 4 in x 5 in

Category

Identification photograph

Credit

Courtesy of Gwen Bell

Lot Number

X7413.2015