Wrench
Description:
Patent for improved construction and function of wrenches. Improvements include a more simple, durable, and inexpensive method of construction and arrangement of the adjustable jaw as to allow a single hand to hold and adjust the wrench simultaneously.
Date:
July 29, 1913
Creator:
Ashliman, Adolph E.
Item Type:
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Patent
Partner:
UNT Libraries Government Documents Department