US PATENT SUBCLASS 323 / 342
.~.~.~ With other transformer

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}
340  DF  .~.~ Having a variable length winding (e.g., tapped) as the final control device {3}
342.~.~.~ With other transformer

DEFINITION

Classification: 323/342

With other transformer:

(under subclass 340) Subject matter wherein the system includes a transformer in addition to the tapped transformer.