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Trolly Catcher.

Description: Patent for simple and inexpensive devices for tripping the trolley pole of an electric car by automatically releasing the tension of the maintaining springs which hold the trolley pole in operative position, so that the trolley pole will drop downwardly shortly after it is displaced from under the trolley wheel and not rise up and break the suspension devices.
Date: November 10, 1912
Creator: Reames, Charles H.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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