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Cooling Device
Patent for a cooling device for milk. Illustrations included.
Date:
June 6, 1911
Creator:
Cooper, Thomas
System:
The Portal to Texas History
Low-Pressure Tire-Signal.
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.
System:
The Portal to Texas History
Poultry and Animal Fumigating Device.
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
System:
The Portal to Texas History