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Rotary Well-Drilling Machine

Description: Patent for a rotary well-drilling machine that makes use of an "independently rotatable section" to aid in the screwing and unscrewing of pipe sections.
Date: August 9, 1921
Creator: Taylor, William Henry
Partner: UNT Libraries Government Documents Department

Folding Table

Description: Patent for a new round folding table with leaves, includes illustrations and instructions.
Date: October 9, 1917
Creator: Henderson, George H.
Partner: UNT Libraries Government Documents Department

Bell-Holder

Description: Patent for a bell holder that attaches to the neck of an animal, prevents loss of the bell, and is easy to use and cheap.
Date: December 9, 1919
Creator: Pappas, Peter G.
Partner: UNT Libraries Government Documents Department
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