Artifact Details

Title

Early Calculating Devices -Patent Application - "Calculating Machine"

Catalog Number

102704299

Type

Still Image

Dimensions

overall: 5 in x 4 in

Description

B&W image of a Sheet 1 of 5 sheets of a Patent Application for "Calculating Machine" Patented Sept 10, 1878 No. 207,918
R. Verea.It has two diagrams showing the mechanisms involved in the machine.

Category

Identification photograph

Lot Number

X7413.2015