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Locking Device for Forms

Description: Patent for a locking device for forms that will not crush the edges of circular forms.
Date: August 27, 1912
Creator: Irvin, Thomas H.
Partner: UNT Libraries Government Documents Department

Plow.

Description: 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.
Partner: UNT Libraries Government Documents Department
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