US PATENT SUBCLASS 84 / 676
.~.~.~.~ With transistor

Current as of: June, 1999
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84 /   HD   MUSIC

1  DF  INSTRUMENTS {9}
600  DF  .~ Electrical musical tone generation {5}
671  DF  .~.~ Electric analog oscillators {9}
675  DF  .~.~.~ With frequency multiplication or division {2}
676.~.~.~.~ With transistor

DEFINITION

Classification: 84/676

With transistor:

(under subclass 675) Subject matter wherein the oscillator, frequency multipliers or frequency dividers include a semiconductor device with three or more electrodes.

SEE OR SEARCH CLASS

327, Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems,

113+, for frequency conversion or control.