US PATENT SUBCLASS 219 / 697
.~.~.~ Plural feed

Current as of: June, 1999
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219 /   HD   ELECTRIC HEATING

678  DF  MICROWAVE HEATING {15}
690  DF  .~ Waveguide applicator {3}
695  DF  .~.~ Input power port arrangement {2}
697.~.~.~ Plural feed

DEFINITION

Classification: 219/697

Plural feed:

(under subclass 695) Subject matter wherein two or more input power ports are located within the waveguide applicator.

SEE OR SEARCH THIS CLASS, SUBCLASS:

701, for a tunnel furnace with plural heating zones.