Comptograph, made by Felt and Tarrant Manufacturing Co.

Comptograph, made by Felt and Tarrant Manufacturing Co., Chicago

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Comptograph, made by Felt and Tarrant Manufacturing Co., Chicago
Science Museum Group
© The Board of Trustees of the Science Museum

Comptograph, made by Felt and Tarrant Manufacturing Co., Chicago

Details

Category:
Mathematics
Object Number:
1933-627
type:
calculating machine (printing, full-keyboard, adding)
credit:
Spero, L.