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US Patent: D138,173
Design For A Wrench
Auto Grip
Patentee:
Edward Matthews - Denver, CO

USPTO Classifications:
81/98, D8/23

Tool Categories:
wrenches : wrench adjustment types : self-adjust wrenches

Assignees:
None

Manufacturer:
Cleveland Wrench Co. - Cleveland, OH

Witnesses:
Unknown

Patent Dates:
Applied: Aug. 11, 1943
Granted: Jun. 27, 1944

Patent Pictures: [ 1 | 2 | 3 ]
Edward Matthews Design Pat. 138,173 (Jun. 27, 1944)
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Description:
Self adjusting swinging hook-jaw wrench design. The Cleveland Wrench Co. Auto Grip markings include the patent number. The Matthews Wrench Co. Denver Colorado self-adjusting wrench may also be related to this design, along with Matthews' April 28, 1923 patent (no. 1,466,136).

D150,677 and D162,856 are later design patents spinning off from this one.

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