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US Patent: 2,374,899
Clamp
Patentee:
Anthony M. Sasgen - Chicago, IL

USPTO Classifications:
269/143, 269/209, 269/238

Tool Categories:
work holding : clamps : C clamps

Assignees:
None

Manufacturer:
Grand Specialties Co. - Chicago, IL

Witnesses:
Unknown

Patent Dates:
Applied: Jan. 15, 1943
Granted: May 01, 1945

Patent Pictures:
USPTO pdf tiff
Google Patents
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Description:
The examples we have seen are marked with the patent number plus "Grand Clamp" and "Steel Alloy". They do not strongly resemble the patent image, looking more like a conventional C clamp with an additional small lever.

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