Artifact Details

Title

Patents for Rechnitzer Calculator

Catalog Number

102698462

Type

Still Image

Dimensions

overall: 4 in x 5 in

Description

Black and white image of two patent applications for Rechnitzer Calculator. Patent Nos. 809,075 and 1,292,513. These images are of the
mechanisms only with out lable explanations.

Category

Photograph

Lot Number

X7413.2015