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US Patent: 513,233
Nut Wrench
Patentees:
James Hardy (exact or similar names) - Clayville, NY
Broad Dunn (exact or similar names) - Clayville, NY

USPTO Classifications:
81/176

Tool Categories:
wrenches : nut wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
A. Ruppert
H. A. Daniels
C. L. Marshall
Michael Hardy
Patent Dates:
Applied: Mar. 02, 1893
Granted: Jan. 23, 1894

Patent Pictures:
James Hardy and Broad Dunn patent January 23, 1894
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Description:
The adjusting screw is concealed within the movable jaw. The specifications note patent no. 56,460 as similar.

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