Resource Type
Counties
2 Matching Results
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Plow
Patent for a plow with an adjustable pitch and share.
Date:
October 1, 1912
Creator:
KilPatrick, Robert L.
System:
The Portal to Texas History
Train-Indicator
Patent for a train indicator that displays numbers or letters that can be easily changed.
Date:
July 2, 1912
Creator:
Elliott, Claud B. & Clappart, Emile E.
System:
The Portal to Texas History