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Headlight.
Patent for "an electric head-light which will adjust the carbons of the arc lamp without the usual vibration" (lines 12-14) and be more durable and efficient.
Date:
October 31, 1911
Creator:
Dooley, Robert M.
System:
The Portal to Texas History
Car Steps
Patent for rail car steps. Illustrations included.
Date:
March 7, 1911
Creator:
Collier, James Dallas
System:
The Portal to Texas History