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US Patent: 563,049
Wrench
Pipe Wrench
Patentee:
Daniel Metcalfe (exact or similar names) - Troy, NY

USPTO Classifications:
81/169, 81/94

Tool Categories:
wrenches : pipe wrenches
wrenches : wrench adjustment types : screw adjust wrenches

Assignees:
None

Manufacturer:
Unknown

Witnesses:
Frank C. Curtis
Henry J. Cannon
C. H. Curtis
G. H. Curtis

Patent Dates:
Applied: Mar. 10, 1896
Granted: Jun. 30, 1896

Patent Pictures:
Daniel Metcalfe patent June 30, 1896
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Description:
Knurl on end of handle moves adjustable jaw; fixed "lower" jaw attached to handle by single tab, and "loop" around moveable jaw. Known example appears hand made.

Corresponding Canadian patent no. CA-53,513 was issued Sept. 17, 1896.

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