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US Patent: 1,075,945
Wrench
Patentee:
Joseph Anthony Schlehr - Chicago, IL

USPTO Classifications:
81/101

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

Assignees:
None

Manufacturer:
Como Wrench Co. - Chicago, IL
Mechanics Tool Co. - Rockford, IL
Mechanical Specialties Company - Chicago, IL

Witnesses:
Ben Payne
Joseph H. Muhler
A. Van Loock
N. L. Collamer

Patent Dates:
Applied: Jan. 13, 1913
Granted: Oct. 14, 1913

Patent Pictures: [ 1 | 2 ]
Joseph A. Schlehr patent October 14, 1913
USPTO pdf tiff
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Description:
The wrench is made of three pieces, without rivets or springs. The adjustable jaw slides over an interrupted "T" shaped rib, and is adjusted by an external adjusting ring which sits in the "gap" in the "T" shaped rib.

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