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US Patent: 2,815,778
Straight beam adjustable jaw clamp
Patentee:
Harry V. Holman (exact or similar names) - St. Petersburg, FL

USPTO Classifications:
269/170, 269/246

Tool Categories:
work holding : clamps : bar and pipe clamps

Assignees:
Adjustable Clamp Co. - Chicago, IL

Manufacturer:
Adjustable Clamp Co. - Chicago, IL

Witnesses:
Unknown

Patent Dates:
Applied: Dec. 23, 1954
Granted: Dec. 10, 1957

Patent Pictures:
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Description:
The inventor was deceased and Daniel V. Holman was executor. The patent gives improvements to the inventor's patents 1,783,713 and 2,221,325. This patent number has been seen on Jorgensen 3700 clamps, a line of bar clamps that remained in production for decades.

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