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Apparatus for Controlling Trolley Poles
Patent for an apparatus for controlling trolley poles. "This invention relates to an apparatus for controlling trolley poles employed for effecting electrical connection between a trolley wire and a motor on a car, and has for its object to provide improved means for automatically throwing the trolley into position to be placed in engagement with the trolley wire" (line 9-15). Illustrations included.
Date:
November 10, 1903
Creator:
Bogue, Judson L. & Jennings, David M.
System:
The Portal to Texas History