Artifact Details

Title

Early Calculating Devices - Patent Application for a Caluclating Machine

Catalog Number

102704297

Type

Still Image

Dimensions

overall: 4 in x 5 in

Description

B&W image of Sheet 1 of 7 sheets of a Patent Application for a Calculating Machine by C. Hamann. 1,011,617 Application Filed June 29,1910 Patented Dec. 12, 1911 It has three diagrams of the machine construction.

Category

Identification photograph

Lot Number

X7413.2015