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US Patent: 215,836
Improvement in Lock-Nuts
Patentee:
George W. Rhines (exact or similar names) - Ridgway, PA

USPTO Classifications:
411/295, 411/919, 411/940, 81/121.1

Tool Categories:
wrenches : auxiliary wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
J. M. Gehant
Clarence Poole
Geo. A. Rathbun
S. A. Rote

Patent Dates:
Applied: Mar. 05, 1879
Granted: May 27, 1879

Patent Pictures:
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Description:
The patent is for a set-screw within a bore-hole in the side of a nut. The specifications and drawing describe a socket wrench to tighten this set-screw.

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