US PATENT SUBCLASS 246 / 232
.~.~.~.~ Circuit changers

Current as of: June, 1999
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246 /   HD   RAILWAY SWITCHES AND SIGNALS

218  DF  ELECTRIC ACTUATION {9}
221  DF  .~ Motor systems {5}
225  DF  .~.~ Reciprocating armature {4}
231  DF  .~.~.~ Opposed magnets {3}
232.~.~.~.~ Circuit changers

DEFINITION

Classification: 246/232

(under subclass 231) Subject matter having devices by which the circuit connections are changed during or at the completion of the given movement.

SEE OR SEARCH THIS CLASS, SUBCLASS:

228, and 242, for other circuit-changer systems in this class.

246+, and all subclasses mentioned in the search notes appended thereto, for various types of circuit-controllers.

SEE OR SEARCH CLASS

361, Electricity: Electrical Systems and Devices,

245+, for polarity reversing.