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Nut Lock.
Patent for a new and improved nut-lock. This design consists in "[a] nut-lock key having a body or wedge portion and a head, and having such head provided at its inner edge with flanges or extensions, the inner edges of the flanges or extensions being separated from the body" (lines 70-74).
Date:
June 28, 1887
Creator:
French, Stephen H. & Maltby, William J.
System:
The Portal to Texas History