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US Patent: 28,020
Letter Copying Press
Patentee:
George C. Taft (exact or similar names) - Worcester, MA

USPTO Classifications:
100/289

Tool Categories:

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
James H. Bancroft
T. H. Rice
Daniel Tainter

Patent Dates:
Granted: Apr. 24, 1860

Reissue Information:
Reissued as RE5,417 (May 20, 1873)

Patent Pictures:
George C. Taft patent April 24, 1860
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Vintage Machinery entry for George C. Taft
Description:
The key idea in the patent is casting the platten and threaded extension in one piece; the patent claims other details of construction including the socket in the top crossing frame.

At various points in his career, Taft manufactured letter copying presses. Patent office rules relating to reissue suggest Taft did not produce a press conforming to this patent at the time of issue.

He patented an "improved" letter copy press in 1864 (patent no. 43,266).

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