Section of model "F" controlled-key Comptometer by Felt and Tarrant Manufacturing Co.

Made:
1921 in Chicago
manufacturer:
Felt and Tarrant Manufacturing Company
Section of model F' controlled-key Comptometer by Felt and

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Section of model F' controlled-key Comptometer by Felt and
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Section of model "F" controlled-key Comptometer by Felt and Tarrant Manufacturing Co., Chicago, USA.

Details

Category:
Mathematics
Object Number:
1921-16
type:
model (calculating machine)
credit:
Felt & Tarrant Manufacturing Co.