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US Patent: 520,562
Nipple Wrench
Improvement in Nipple-Grips
Patentee:
Albert Dudly - Menominee, MI

USPTO Classifications:
81/118, 81/DIG.7

Tool Categories:
wrenches : spoke nipple wrenches

Assignees:
None

Manufacturer:
Dudly Manufacturing Company - Menominee, MI

Witnesses:
N. E. Oliphant
Geo. W. Young
H. B. Moulton
Franklin H. Brown

Patent Dates:
Applied: Mar. 21, 1894
Granted: May 29, 1894

Patent Pictures:
Albert Dudly patent May 29, 1894
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Description:
The grip can be tightly clamped onto spoke nipples even if the corners are rounded. The hook on the longer "handle" keeps the tool aligned to the spoke.

The design was produced with a variety of markings, and in a range of sizes.

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