US PATENT SUBCLASS 373 / 7
.~ Induction


Current as of: June, 1999
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373 /   HD   INDUSTRIAL ELECTRIC HEATING FURNACES

1  DF  PLURAL DIVERSE HEATING MEANS {3}
7.~ Induction


DEFINITION

Classification: 373/7

Induction:

(under subclass 1) Subject matter including means to produce heat in a charge by placing it in an electromagnetic relationship with an inducing winding, the charge forming the secondary.

SEE OR SEARCH THIS CLASS, SUBCLASS:

4, for inductance heating elements combined with arc furnaces.

6, for inductance heating elements combined with resistance furnaces.

138+, for induction furnace details, per se.

SEE OR SEARCH CLASS

164, Metal Founding,

513, for inductive heating apparatus used for metal casting. 219, Electric Heating,

600+, for inductive heating, subclasses 678+ for microwave heating, and subclasses 764+ for capacitive dielectric heating.