(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.
