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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
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