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US Patent: D162,856
Adjustable Wrench
Edward Matthews - Denver, CO

USPTO Classifications:
81/100, D8/23

Tool Categories:
wrenches : wrench adjustment types : self-adjust wrenches
wrenches : pipe and nut combination wrenches

Edward Matthews - Denver, CO
Joseph H. Conway - Denver, CO

Not known to have been produced

none listed

Patent Dates:
Applied: Jun. 29, 1949
Granted: Apr. 10, 1951

Patent Pictures:
Edward Matthews design patent April 10, 1951
USPTO pdf tiff
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Adjustable pivot point "self-adjusting" hook jaw wrench similar to Matthews' fixed pivot point "self-adjusting" hook jaw wrench (e.g. patent no. D138,173).

The patent also cites patent no. 1,401,484 as a reference.

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