Resource Type
Counties
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Means of Escaping from Aeroplanes
Patent for providing emergency egress to pilots by way of quick release restraint straps, a parachute, and a trap door, including illustrations.
Date:
November 19, 1918
Creator:
Carver, Ben D.
System:
The Portal to Texas History
Rail-Tie.
Patent for improvements in metal rail ties to be placed in low areas to allow water to pass through to minimize the threat of washouts. Includes instructions and illustrations.
Date:
November 11, 1913
Creator:
Warrell, John D.
System:
The Portal to Texas History