Wrench.
Description:
Patent for a nut-wrench capable of tightening different sized nuts. The lower jaw of the wrench has different levels, the overall effect being that of a staircase, while the upper jaw is flat with a bite that holds the nuts in place.
Date:
December 15, 1896
Creator:
Tiner, John F.
Item Type:
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Patent
Partner:
UNT Libraries Government Documents Department