US PATENT SUBCLASS 307 / 22
.~.~.~.~ AC and DC

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

11  DF  PLURAL LOAD CIRCUIT SYSTEMS {8}
18  DF  .~ Plural sources of supply {5}
19  DF  .~.~ Interconnected for energy transfer {2}
21  DF  .~.~.~ Diverse sources {1}
22.~.~.~.~ AC and DC

DEFINITION

Classification: 307/22

(under subclass 21) Subject matter in which the diverse sources of supply are sources of alternating current and direct current.

SEE OR SEARCH THIS CLASS, SUBCLASS:

2, and 26, for this subject matter.