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US Patent: 54,888
Improvement in Wrenches
Patentee:
George P. Ganster (exact or similar names) - New York, NY

USPTO Classifications:
269/233, 81/155

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
M. Wiard
Reuben H. Plass
Patent Dates:
Granted: May 22, 1866

Patent Pictures:
G. P. Ganster Pat. May 22, 1866
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Description:
A volute-threaded adjusting nut in the middle of the handle engages arc-shaped notches in the shank of the movable jaw.

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