US PATENT SUBCLASS 315 / 98
.~ Plural cathodes or heaters in the load device

Current as of: June, 1999
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315 /   HD   ELECTRIC LAMP AND DISCHARGE DEVICES: SYSTEMS

94  DF  WITH CATHODE OR CATHODE HEATER SUPPLY CIRCUIT {6}
98.~ Plural cathodes or heaters in the load device {1}
99  DF  .~.~> Series connected cathodes or heaters {1}

DEFINITION

Classification: 315/98

(under subclass 94) Systems, wherein the load device in the system is provided with a plurality of thermionic cathodes or cathode heaters.

SEE OR SEARCH THIS CLASS, SUBCLASS:

334, and indented subclasses for systems wherein the load device is an electric discharge device provided with a plurality of cathodes and/or a plurality of anodes.