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US Patent: 892,111
Chain Pipe Wrench
Patentee:
George Amborn - New York, NY

USPTO Classifications:
81/70

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

Assignees:
J. H. Williams & Co. - Brooklyn, NY

Manufacturer:
Not known to have been produced

Witnesses:
Eugene V. Myers
Theodore T. Snell
Fred White
René Bruine

Patent Dates:
Applied: Mar. 08, 1907
Granted: Jun. 30, 1908

Patent Pictures:
George Amborn patent June 30, 1908
USPTO pdf tiff
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Description:
Amborn received three chain wrench patents on June 30, 1908 -- this patent, 892,112 and 892,113. Aspects of Amborn's patents were used in chain wrenches produced by Williams.

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