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US Patent: 207,814
Wrench
Patentee:
John M. Marty - Faribault, MN

USPTO Classifications:
81/141

Tool Categories:
wrenches : wrench adjustment types : quick adjust wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
C. L. Lowell
S. W. Clarke

Patent Dates:
Applied: Jan. 09, 1878
Granted: Sep. 10, 1878

Patent Pictures:
John M. Marty patent September 10, 1878
USPTO pdf tiff
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Description:
The sliding jaw is held in adjustment by cam lobes on the swinging lever. All three pieces are held together by a single bolt.

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