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US Patent: 71,983
Improvement in clamps
Patentees:
George H. Snow - New Haven, CT
George H. Coe - New Haven, CT

USPTO Classifications:
144/260, 269/174

Tool Categories:
work holding : clamps : hand screws

Assignees:
None

Manufacturer:
Unknown

Witnesses:
A. J. Tibbits
John H. Shumway

Patent Dates:
Granted: Dec. 10, 1867

Patent Pictures: [ 1 | 2 | 3 ]
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Description:
The example shown is marked only with the patent date.

The innovation is a quick adjustment feature.

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