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Aerial Vehicle
Patent for an aerial vehicle. Illustrations included.
Date:
January 2, 1912
Creator:
Rex, Cleveland A.
System:
The Portal to Texas History
Valve-Controlling Mechanism for Train-Air-Brake Systems
Patent for a valve controlling mechanism for train air brake systems that can be used when a car derails.
Date:
June 11, 1912
Creator:
Strader, Perry T.
System:
The Portal to Texas History
Seal-Padlock
Patent for a padlock seal for train cars. Illustrations included.
Date:
April 30, 1912
Creator:
Lawler, Claude B.
System:
The Portal to Texas History