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CA Patent: CA-5,874
Pipe Wrench
Patentee:
Edward Gosford Clinch - Saint John, NB Canada

USPTO Classifications:

Tool Categories:
wrenches : pipe wrenches
wrenches : wrench adjustment types : self-adjust wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Edgar Tate
A. F. Terry

Patent Dates:
Applied: Mar. 06, 1876
Granted: Mar. 24, 1876

Patent Pictures:
Edward G. Clinch patent March 24, 1876
CIPO Data
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5,874 in Canadian Patents Database
Description:
The frame is a parallelogram; the teeth face each other.

The certification on the drawing is dated Feb. 24th, 1876.

Clinch secured parallel U.S. patent no. 173,845 on Feb. 22, 1876.

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