US PATENT SUBCLASS 323 / 330
.~.~.~ With permanent magnet

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}
330.~.~.~ With permanent magnet

DEFINITION

Classification: 323/330

With permanent magnet:

(under subclass 329) Subject matter which includes a

permanent magnet as part of or in addition to the saturable core.