US PATENT SUBCLASS 373 / 145
.~ Having condition signaling means

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

138  DF  INDUCTION FURNACE DEVICE {10}
145.~ Having condition signaling means

DEFINITION

Classification: 373/145

Having condition signaling means:

(under subclass 138) Subject matter including means for monitoring and indicating a characteristic of the furnace operation.

SEE OR SEARCH CLASS

340, Communications: Electrical,

500+, for condition responsive indicating systems, per se.