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US Patent: 1,501,889
Internal Wrench
Internal Pipe Wrench
Patentee:
Claud J. Mick - Indianapolis, IN

USPTO Classifications:
81/164, 81/447

Tool Categories:
wrenches : pipe wrenches

Assignees:
Leader Specialty Co., Inc. - Indianapolis, IN

Manufacturer:
Leader Specialty Co., Inc - Indianapolis, IN

Witnesses:
none listed

Patent Dates:
Applied: Jun. 14, 1923
Granted: Jul. 15, 1924

Patent Pictures: [ 1 | 2 ]
Claud J. Mick patent July 15, 1924
USPTO pdf tiff
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Description:
One pivoting jaw, and one jaw which moves by screw adjustment; internal wrench for pipe, pipe fittings, etc.

Contemporary example marked, "LEADER SPECIALTY Co / INDPL'S IND / PAT'D APPLD FOR;" More recent example marked "MEPHISTO" in script reflects production by Mephisto Tool Co. of Hudson, N.Y.

Corresponding Canadian patent CA-241,731 was granted July 22,1924.

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