US PATENT SUBCLASS 340 / 825.18
.~.~ Relay

Current as of: June, 1999
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340 /   HD   COMMUNICATIONS: ELECTRICAL

825  DF  SELECTIVE {23}
825.06  DF  .~ Monitoring and control (e.g., supervisory) {8}
825.18.~.~ Relay

DEFINITION

Classification: 340/825.18

Relay:

(under subclass 825.06) Subject matter having an electromagnetic relay.

SEE OR SEARCH CLASS

361, Electricity: Electrical Systems and Devices,

160+, for a relay control system.