Nut-Lock.
Description:
Patent for a nut-lock that is meant to be screwed onto a bolt, threaded shaft, axle spindle, or other similar screws. The nut has an improved construction and a lock that consists of a tiny pin that must be pulled out before the nut can be unscrewed.
Date:
September 19, 1893
Creator:
Stewart, William Mills
Item Type:
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