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CA Patent: CA-17,940
Pipe Wrench
Patentee:
Henry B. Williams (exact or similar names) - Fremont Centre, MI

USPTO Classifications:

Tool Categories:
wrenches : pipe wrenches

Assignees:
Isaac S. Lake - Fremont Centre, MI

Manufacturer:
Not known to have been produced

Witnesses:
A. Charbonneau
L. A. Harwood

Patent Dates:
Granted: Oct. 23, 1883

Patent Pictures:
WILLIAMS' Pipe Wrench patent no. 17,940 from CANADIAN PATENT OFFICE RECORD
CIPO Data
Report data errors or omissions to steward Stan Schulz
17,940 in Canadian Patents Database
Description:
Hook jaw pipe wrench with size adjustment accomplished by pivot point for swinging hook jaw held in one of several notches by a leaf spring.

The DATAMP entry for corresponding U.S. patent no. 275,106 also provides production information, etc.

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