US PATENT SUBCLASS 327 / 458
.~.~.~.~.~.~ Combined with diverse four or more layer device

Current as of: June, 1999
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327 /   HD   MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS

365  DF  GATING (I.E., SWITCHING INPUT TO OUTPUT) {12}
419  DF  .~ Utilizing three or more electrode solid-state device {7}
438  DF  .~.~ Four or more layer device (e.g., thyristor, etc.) {6}
447  DF  .~.~.~ AC supply {6}
453  DF  .~.~.~.~ Silicon controlled rectifier (SCR) {4}
455  DF  .~.~.~.~.~ Triac {4}
458.~.~.~.~.~.~ Combined with diverse four or more layer device

DEFINITION

Classification: 327/458

Combined with diverse four or more layer device:

(under subclass 455) Subject matter including a triac and at least one different four or more layer device.