US PATENT SUBCLASS 307 / 7
.~.~.~.~ Induction transformer

Current as of: June, 1999
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307 /   HD   ELECTRICAL TRANSMISSION OR INTERCONNECTION SYSTEMS

1  DF  SUPERIMPOSED UNLIKE CURRENTS {3}
4  DF  .~ Different voltages {1}
5  DF  .~.~ Series-connected {2}
6  DF  .~.~.~ Plural converters {1}
7.~.~.~.~ Induction transformer

DEFINITION

Classification: 307/7

(under subclass 6) Subject matter having an induction transformer.

SEE OR SEARCH CLASS

323, Electricity: Power Supply or Regulation Systems,

247, 301, 305, and 328 for transformer systems.

336, Inductor Devices, appropriate subclasses for the structure of transformers and inductive reactors.