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US Patent: 286,543
Wrench
Patentee:
Andrew Hyde - Hatfield, MA

USPTO Classifications:
81/171

Tool Categories:
wrenches : wrench components : wrench adjustment locks

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
H. A. Chapin
H. U. Loomis
W. B. Henderson
C. H. Pierce

Patent Dates:
Applied: Mar. 29, 1883
Granted: Oct. 09, 1883

Patent Pictures:
Andrew Hyde patent October 9, 1883
USPTO pdf tiff
Google Patents
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Description:
The small lever and detent are an adjustment lock for a monkey wrench.

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