US PATENT SUBCLASS 333 / 110
.~.~.~ For providing frequency separation

Current as of: June, 1999
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333 /   HD   WAVE TRANSMISSION LINES AND NETWORKS

1  DF  PLURAL CHANNEL SYSTEMS {4}
100  DF  .~ Having branched circuits {6}
109  DF  .~.~ Using directional coupler {6}
110.~.~.~ For providing frequency separation

DEFINITION

Classification: 333/110

For providing frequency separation:

(under subclass 109) Subject matter wherein the interchange of energy results in the separation or combination of a plurality of frequencies or frequency bands.