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US Patent: 2,165
Improvement in Key-Wrenches
Patentee:
James Brett (exact or similar names) - Newburgh, NY

USPTO Classifications:
450/155, 81/148

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
George Lomas
P. F. Hum

Patent Dates:
Applied: Jun. 14, 1841
Granted: Jul. 10, 1841

Patent Pictures:
James Brett patent July 10, 1841
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Description:
This wedge-key adjustable wrench has teeth cut on the inside of the movable jaw and matching teeth on the wrench shank. These teeth are the only patented feature.

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