US PATENT SUBCLASS 361 / 192
.~.~.~ Including interlock

Current as of: June, 1999
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361 /   HD   ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES

139  DF  CONTROL CIRCUITS FOR ELECTROMAGNETIC DEVICES {7}
160  DF  .~ For relays or solenoids {11}
191  DF  .~.~ Plural relay or solenoid load selectively operated {1}
192.~.~.~ Including interlock {1}
193  DF  .~.~.~.~> Electronic interlock

DEFINITION

Classification: 361/192

Including interlock:

(under subclass 191) Subject matter wherein the relays or solenoids are interconnected either electrically or mechanically so that only the selected one or ones can be maintained in an actuated condition at any given moment.