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US Patent: 622,005
Nipple Grip For Bicycle Wrenches
William Herrick - Chicago, IL

USPTO Classifications:
81/119, 81/DIG.7

Tool Categories:
wrenches : spoke nipple wrenches

Morgan and Wright - Chicago, IL

Morgan and Wright - Chicago, IL

A. F. Durand
Margaret W. Wagner

Patent Dates:
Applied: Dec. 28, 1897
Granted: Mar. 28, 1899

Patent Pictures:
Morgan & Wright NIPPLE GRIP courtesy &(c) mjdtools. William Herrick pat. 3.28.1899
USPTO pdf tiff
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Closed end tubular form with longitudinal tapered slot to adjust the tension of bicycle wheel spokes by turning the nipples that extend through the rim.

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