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The thoughtful comments on trolley poles prompted me to do a patent search. I never thought of looking there. There are thousands of drawings of the poles and retrieval systems in the system, as well as other streetcar hardware, from controllers to compressors to "people catchers". I posted a few examples.

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  • US650765-1
  • US650765-0
  • US688346-0
  • US688346-1
  • US820584-0
  • US2761025-0
Last edited by Tommy
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OGR Publishing, Inc., 1310 Eastside Centre Ct, Suite 6, Mountain Home, AR 72653
800-980-OGRR (6477)
www.ogaugerr.com

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