US PATENT SUBCLASS 219 / 756
.~ Enclosed cavity structure

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

678  DF  MICROWAVE HEATING {15}
756.~ Enclosed cavity structure {2}
757  DF  .~.~> With cooling or ventilation
758  DF  .~.~> With cavity illumination

DEFINITION

Classification: 219/756

Enclosed cavity structure:

(under subclass 678) Subject matter wherein the microwave energy is applied to a material or an object within a closed chamber.

(1) Note. The chamber described above may also be referred to as a microwave oven.

SEE OR SEARCH CLASS

333, Wave Transmission Lines and Networks,

227+, for a cavity resonator.