US PATENT SUBCLASS 373 / 144
.~ Having plural heating elements

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

138  DF  INDUCTION FURNACE DEVICE {10}
144.~ Having plural heating elements

DEFINITION

Classification: 373/144

Having plural heating elements:

(under subclass 138) Subject matter including more than one inductive heating means for a single furnace.

SEE OR SEARCH THIS CLASS, SUBCLASS:

1+, for furnaces having plural diverse heating means.