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US Patent: 56,460
Improvement in Screw-Wrenches
Patentee:
Atkins Stover (exact or similar names) - New York, NY

USPTO Classifications:
81/176

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
R. R. Ring
M. M. Livingston
Patent Dates:
Granted: Jul. 17, 1866

Patent Pictures:
Atkins Stover Pat. July 17, 1866
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Description:
The adjusting worm slides on a rod parallel to the main shank, and engages teeth cut in the main shank.

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