US PATENT SUBCLASS 323 / 331
.~.~.~ With core having a gap, aperture, or slot

Current as of: June, 1999
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323 /   HD   ELECTRICITY: POWER SUPPLY OR REGULATION SYSTEMS

318  DF  EXTERNAL OR OPERATOR CONTROLLED {5}
328  DF  .~ Using a transformer or inductor as the final control device {6}
329  DF  .~.~ Controllably saturable {5}
331.~.~.~ With core having a gap, aperture, or slot

DEFINITION

Classification: 323/331

With core having a gap, aperture, or slot:

(under subclass 329) Subject matter wherein the core includes a gap, aperture, or slot therein.