Trolley - Guard
Description:
Patent for a new and useful improvement in trolley-guards to prevent "the trolley - wheel at the top of a trolley - pole from jumping fro the conducting - wire, thus avoiding the stopping of the cars" (line 9 - 11).
Date:
January 4, 1898
Creator:
Vogler, Herman J.
Item Type:
Refine your search to only
Patent