1 Matching Results
Results open in a new window/tab.
Results:
1 - 1 of
1
Railroad Crossing Signal.
Patent for a railroad crossing signal. The device is created so that the highway signal can be automatically raised or lowered at the crossing by a passing train.
Date:
December 13, 1921
Creator:
Ridout, Horace J.
System:
The Portal to Texas History