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Plow
Patent for a plow augmented by an adjustable knife attached at the rear that improves plow cutting and stability.
Date:
October 12, 1915
Creator:
Barker, Spencer A.
System:
The Portal to Texas History
D-Handle Machine.
Patent for a new machine for automating the production of D-handles, which will operate continuously, set the workflow pace, and form a smooth inner rounded part of the grip.
Date:
May 12, 1914
Creator:
Johnson, Raymond F.
System:
The Portal to Texas History