US PATENT SUBCLASS 219 / 703
.~.~ Defrost


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

678  DF  MICROWAVE HEATING {15}
702  DF  .~ With control system {8}
703.~.~ Defrost


DEFINITION

Classification: 219/703

Defrost:

(under subclass 702) Subject matter wherein a device is controlling the microwave heating apparatus to remove frost or ice from a material or an object so as to thaw out or become unfrozen.

SEE OR SEARCH CLASS

244, Aeronautics,

134+, for ice prevention.

426, Food or Edible Material: Processes, Compositions, and Products,

524, for cooling, freezing, or treating cooled or frozen product; e.g., thawing, etc.