US PATENT SUBCLASS 315 / 350
.~.~ Plural control currents and/or potentials

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

326  DF  DISCHARGE DEVICE LOAD {8}
349  DF  .~ Discharge control discharge device load {4}
350.~.~ Plural control currents and/or potentials {1}
351  DF  .~.~.~> Plural pulsating or A.C. currents and/or potentials

DEFINITION

Classification: 315/350

(under subclass 349) Systems provided with means to apply two or more potentials to the discharge control means.

SEE OR SEARCH THIS CLASS, SUBCLASS:

270, and indented subclass, for this subject matter where the discharge device is supplied with pulsating or alternating current.

346, for systems under the class definition wherein the control means for the discharge device is an electromagnet which is supplied with two or more currents.

SEE OR SEARCH CLASS

323, Electricity: Power Supply or Regulation Systems,

227, and 291 for electronic tube regulators. See Lines With Other Classes and Within This Class, "Electronic Tube Systems," in the class definition of Class 323.