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Locking Device for Forms
Patent for a locking device for forms that will not crush the edges of circular forms.
Date:
August 27, 1912
Creator:
Irvin, Thomas H.
System:
The Portal to Texas History
Plow.
Patent for an inexpensive and simple plow that has an improved braces placement which makes the plow very rigid. The blade angle is also adjustable and the plow can be a single or double plow.
Date:
March 27, 1894
Creator:
Edge, John S.
System:
The Portal to Texas History