US PATENT SUBCLASS 219 / 526
.~.~ With means for attaching housing or casing to an external device (e.g., magnetic or vacuum)

Current as of: June, 1999
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219 /   HD   ELECTRIC HEATING

200  DF  HEATING DEVICES {14}
520  DF  .~ With heater-unit housing, casing, or support means (e.g., frame and single sheet) {13}
526.~.~ With means for attaching housing or casing to an external device (e.g., magnetic or vacuum) {1}
527  DF  .~.~.~> Body-supported (e.g., human body)

DEFINITION

Classification: 219/526

(under subclass 520) Subject matter wherein the significant housing, casing or support structure includes means whereby the housing, casing or support may be secured or attached to an object or surface to be heated. The transfer of heat energy may be of convection, conduction or radiation.

SEE OR SEARCH THIS CLASS, SUBCLASS:

201+, for electric heaters combined with diverse type art device.