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Agricultural Implement (open access)

Agricultural Implement

Patent for an agricultural implement. This invention allows for the interchangeability of different blades. Illustration included.
Date: October 2, 1906
Creator: Messer, Jeremiah Clark
System: The Portal to Texas History
Self-Locking, Nut. (open access)

Self-Locking, Nut.

Patent for a "simple and efficient device" for "securely holding a nut upon a bolt" (lines 76-77).
Date: March 6, 1906
Creator: Galliher, Lawrence M.
System: The Portal to Texas History