US PATENT SUBCLASS 191 / 57
.~.~ Multiple contact

Current as of: June, 1999
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191 /   HD   ELECTRICITY: TRANSMISSION TO VEHICLES

45 R  DF  COLLECTORS {8}
50  DF  .~ Trolley {10}
57.~.~ Multiple contact {1}
58  DF  .~.~.~> Tandem

DEFINITION

Classification: 191/57

(under subclass 50) Trolley collectors having a plurality of contact elements.

SEE OR SEARCH CLASS

246, Railway Switches and Signals,

65, and indented subclass, 73 and 254.