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Patent for an oxygen generator that refills as it is emptied.

Date: February 7, 1911

Creator: Bradley, Richard Clinton

Partner: UNT Libraries Government Documents Department

Patent for a new design "in armor or protectors for pneumatic tires" (line 13) including instructions and illustrations.

Date: March 7, 1911

Creator: Ramsay, Henry M.; McGary, Austin & Campbell, John W.

Partner: UNT Libraries Government Documents Department

Patent for a rotary engine with a better flow of fluid to the casing.

Date: February 7, 1911

Creator: Nichols, Franklin Priestley

Partner: UNT Libraries Government Documents Department

Patent for an automatic sack filling and weighing machine. Illustrations included.

Date: November 7, 1911

Creator: Carter, Edward D.

Partner: UNT Libraries Government Documents Department