US PATENT SUBCLASS 191 / 39
.~.~ Section insulators


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

22 R  DF  CONDUCTORS {5}
33 R  DF  .~ Trolley {9}
39.~.~ Section insulators


DEFINITION

Classification: 191/39

(under subclass 33) Means for interrupting the electrical continuity of the trolley conductor while maintaining the uninterrupted mechanical path of the collector.

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238, Railways: Surface Track,

152,.