UNT Libraries Government Documents Department - 6 Matching Results

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Patent for an advertising exhibitor and phonographic annunciator that shows changing advertisements and has a recording reading them out.

Date: July 25, 1911

Creator: Stafford, George A.

Patent for an air brake coupling for use on trains that opens the air valves when the coupling is attached.

Date: June 20, 1911

Creator: Winton, Robert A.

Patent for a sack for cotton pickers. Illustrations included.

Date: July 11, 1911

Creator: Kendall, Ernest L.

Patent for a cultivator attachment designed to aid in the plowing of soil. Illustrations included.

Date: March 7, 1911

Creator: Parmer, George W. & Miller, John W.

Patent for an oil burner. Illustration included.

Date: March 28, 1911

Creator: Kendall, Ernest L.

Patent for "new and useful poultry feeding and watering device" (lines 5-7), including illustration and instructions.

Date: May 6, 1911

Creator: Wilson, W. C.