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Low-Pressure Tire-Signal.

Description: Patent for a device that attaches to the valve of an automobile tire and creates a warning noise if the tire pressure is too low. Includes instructions and illustrations.
Date: December 5, 1911
Creator: Collins, Joseph M.
Partner: UNT Libraries Government Documents Department

Poultry and Animal Fumigating Device.

Description: Patent for a poultry and animal fumigating device that spreads the fumigating substance throughout the animals cage.
Date: April 18, 1911
Creator: Graeffe, Ernst Frederich
Partner: UNT Libraries Government Documents Department

Cooling Device

Description: Patent for a cooling device for milk. Illustrations included.
Date: June 6, 1911
Creator: Cooper, Thomas
Partner: UNT Libraries Government Documents Department
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