US PATENT SUBCLASS 392 / 429
.~.~.~.~.~ Coiled on core

Current as of: June, 1999
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392 /   HD   ELECTRIC RESISTANCE HEATING DEVICES

*  DD  HEATING DEVICES (CLASS 219 SUBCLASS 200) {11}
407  DF  .~ Radiant heater {10}
422  DF  .~.~ With reflector {4}
426  DF  .~.~.~ Bowl-shaped reflector {2}
428  DF  .~.~.~.~ Linear heating element aligned with reflector axis {1}
429.~.~.~.~.~ Coiled on core

DEFINITION

Classification: 392/429

Coiled on core:

(under subclass 428) Subject matter wherein the electric resistance wire is wound on an elongated electrically insulated support member.

SEE OR SEARCH CLASS

338, Electrical Resistors,

296+, for helical or wound resistance element.