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US Patent: D13,690
Hand Screw Or Clamp
Patentee:
Amedee J. Benjamin - Valley Falls, RI

USPTO Classifications:
D8/72

Tool Categories:
work holding : clamps : hand screws

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
John M. Fournier
Alphonsus Schiller
C. Sedgwick
Francis McArdle

Patent Dates:
Applied: Dec. 07, 1882
Granted: Mar. 06, 1883

Patent Pictures:
Amedee J. Benjamin design patent March 6, 1883
USPTO pdf tiff
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Description:
The back sides of the clamps are curved rather than straight.

Term of patent 14 years.

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