US PATENT SUBCLASS 246 / 82
.~.~.~.~ Rotary controller

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

20  DF  BLOCK-SIGNAL SYSTEMS {4}
27  DF  .~ Automatic {5}
28 R  DF  .~.~ Electric {18}
81  DF  .~.~.~ Propulsion-current signaling {3}
82.~.~.~.~ Rotary controller

DEFINITION

Classification: 246/82

(under subclass 81) Subject matter having one or more circuit-controllers continuously rotated in one direction, which are actuated either electrically or mechanically, but which do not perform a counting and canceling function.

SEE OR SEARCH THIS CLASS, SUBCLASS:

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