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US Patent: 377,827
Wrench
Patentee:
Henry W. Hackley - Kokomo, IN

USPTO Classifications:
81/394, 81/426.5, 81/97

Tool Categories:
wrenches : axle nut wrenches

Assignees:
None

Manufacturer:
Unknown

Witnesses:
O. W. Nottingham
F. B. Potts
Josiah Breeson
B. F. Redmond
Patent Dates:
Applied: Jan. 29, 1887
Granted: Feb. 14, 1888

Patent Pictures:
Henry W. Hackley patent February 14, 1888
USPTO pdf tiff
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Description:
The movable jaw with a short handle is pushed closed by a compression spring. It provides sufficient pressure to hold the axle nut.

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