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Creator

Felt and Tarrant Manufacturing Co Biography Biography
Dorr Eugene Felt established the Felt and Tarrant Manufacturing Co with his business partner Robert Tarrant in Chicago in 1889. Felt had patented the first practical and commercially successful adding machine in 1887, and had begun production of comptometers in 1888. During the 1920s, a British subsidiary company was established, known as Felt and Tarrant Ltd. In 1957, Felt and Tarrant Manufacturing Co changed its name to Comptometer Corporation.

Scope and Content
Instruction manual for operating and maintaining a comptometer machine.
Language
English
Level of description
ITEM
Repository name
Science and Industry Museum
Conditions governing access
Open access.
Conditions governing Reproduction
Copies may be supplied in accordance with current copyright legislation and Science Museum Group terms and conditions.