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US Patent: D57,323
Wrench
Patentee:
Cullen C. Evans - Los Angeles, CA

USPTO Classifications:
D8/28

Tool Categories:
wrenches : automotive specialty wrenches
wrenches : wrench components : wrench sockets

Assignees:
None

Manufacturer:
M. P. Wessling - Chicago, IL

Witnesses:
none listed

Patent Dates:
Applied: Jan. 02, 1920
Granted: Mar. 15, 1921

Patent Pictures: [ 1 | 2 | 3 ]
Cullen C. Evans patent March 15, 1921
USPTO pdf tiff
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Description:
The openings shown in this design appear to correspond to the fasteners and adjustments found on the Model T Ford. The date and style corresponds to a "bone wrench" marketed as the "Lucky 'Leven Chicago Pat. Mar. 15 '21"

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