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Internal-Combustion Engine.

Description: Patent for improvements for internal combustion engines. Improvements include a more compact design, easier to access for repairs, and increased durability and efficiency.
Date: June 17, 1919
Creator: Ward, John Price
Partner: UNT Libraries Government Documents Department

Smoke Stack Protector

Description: Patent for adjustable smoke stack protector that stays open when in use and covers the opening when not in order to protect from rain, wind, dirt to protect the stack from deteriorating.
Date: March 17, 1914
Creator: French, Elmer C. & Craig, Thomas E.
Partner: UNT Libraries Government Documents Department
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