(under subclass 1) Process including the step of treating the article or material with electromagnetic waves in the range of 3 X 10[supscrpt]9[end supscrpt] Hz to 3 X 10[supscrpt]11 [end supscrpt]Hz; i.e., the so-called "microwave" range.
SEE OR SEARCH CLASS
219, Electric Heating,
600+, for inductive heating, subclasses 678+ for microwave heating, and subclasses 764+ for capacitive dielectric heating.