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US Patent: 1,043,813
Chain Pipe-Wrench
Patentee:
Maxim A. Duquett (exact or similar names) - Toledo, OH

USPTO Classifications:
81/69

Tool Categories:
wrenches : pipe wrenches : chain and strap wrenches

Assignees:
Maxim A. Duquett - Toledo, OH
Jason A. Barber - Toledo, OH

Manufacturer:
Toledo Wrench Company - Detroit, MI

Witnesses:
G. V. Domarus, Jr.
Robert Dobberman
John M. McCabe
Earle Peters

Patent Dates:
Applied: Jul. 20, 1911
Granted: Nov. 12, 1912

Patent Pictures: [ 1 | 2 ]
Maxim A. Duquett patent November 12, 1912
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Description:
Chain pipe wrench with gripping portions facing each other, so that reversing the direction of action does not entail removing and re-setting the entire wrench. The lever handle has a slot which allows the handle to use one or the other of the gripping sections as the base for the fulcrum.

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