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Semaphore.
Patent for a semaphore with an enclosure for the operating gearing in signaling devices for railway trains. It incloses the operating gearing so that ice does not interfere with its operation and water does not touch the gearing.
Date:
January 16, 1912
Creator:
Van Zandt, Luther H.
System:
The Portal to Texas History
Direction Indicator
Patent for direction indicators for vehicles
Date:
January 16, 1917
Creator:
Boberg, Charles E.
System:
The Portal to Texas History