US PATENT SUBCLASS 332 / 143
.~.~.~.~.~ Plural modulator tubes

Current as of: June, 1999
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332 /   HD   MODULATORS

117  DF  FREQUENCY MODULATOR {6}
137  DF  .~ Including electron discharge device {1}
138  DF  .~.~ Particular oscillator circuit {2}
141  DF  .~.~.~ L-C oscillator type {1}
142  DF  .~.~.~.~ With separate modulator tube (e.g., reactance tube) {1}
143.~.~.~.~.~ Plural modulator tubes

DEFINITION

Classification: 332/143

Plural Modulator Tubes:

(under subclass 142) Subject matter having a plurality of such distinct modulator tubes.