US PATENT SUBCLASS 307 / 80
.~ Selective or optional sources

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

43  DF  PLURAL SUPPLY CIRCUITS OR SOURCES {14}
80.~ Selective or optional sources {1}
81  DF  .~.~> Predetermined sequence

DEFINITION

Classification: 307/80

(under subclass 43) Subject matter in which the plural sources or plural supply circuits may be selectively or optionally connected to the load.

SEE OR SEARCH THIS CLASS, SUBCLASS:

64+, for this subject matter.

SEE OR SEARCH CLASS

333, Wave Transmission Lines and Networks,

3, for miscellaneous plural channel communication systems having means to substitute one line for another.