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Improvement in Fish and Animal Traps

Description: Patent for an improvement in the design of traps intended for catching fish or animals. Includes illustration.
Date: September 18, 1872
Creator: Hartcourt, John T.
Partner: UNT Libraries Government Documents Department

Car Ventilation.

Description: Patent for an apparatus to improve car ventilation, including illustrations.
Date: February 18, 1879
Creator: Knipscheer, John
Partner: UNT Libraries Government Documents Department
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