Month

Air-Propeller (open access)

Air-Propeller

Patent for a propeller for aircrafts. Illustrations included.
Date: April 9, 1912
Creator: Buchanan, Jesey H.
System: The Portal to Texas History
Horse Detacher (open access)

Horse Detacher

Patent for a new and improved horse detacher which allows the driver to unhitch a horse without exiting the carriage or wagon, including specifications and illustrations.
Date: April 1, 1913
Creator: Carter, William Otis
System: The Portal to Texas History