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US Patent: D29,339
Design For A Spoke or Nipple Wrench
Patentee:
Christian Birk - Buffalo, NY

USPTO Classifications:
D8/28

Tool Categories:
wrenches : spoke nipple wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
O. E. Hoddick
W. G. McGowan
J. C. Wallace
Hiram H. Bacon

Patent Dates:
Applied: Aug. 17, 1898
Granted: Sep. 13, 1898

Patent Pictures:
USPTO pdf tiff
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Description:
The design has four projecting arms, each arm having two lugs with center notches, for a total of eight sizes.

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