US PATENT SUBCLASS 219 / 539
.~.~ Comprising plural separate and distinct resistive elements


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

200  DF  HEATING DEVICES {14}
538  DF  .~ With heating unit structure {6}
539.~.~ Comprising plural separate and distinct resistive elements


DEFINITION

Classification: 219/539

(under subclass 538) Subject matter comprising a plurality of heating elements combined with core, sheath or support means. The plurality of elements may or may not be attached to a single core, sheath or support means.

(1) Note. To complete the search for this subject matter, search should be made above in the indented subclass under each special type heating devices listed.

SEE OR SEARCH CLASS

338, Electrical Resistors, particularly

48, for plural separate diverse resistors, subclasses 76, 120, 122+, and 128+ for mechanically variable resistor which may involve a plurality of resistors with a support, subclass 203, for structures readily separable into a plurality of resistors, subclasses 235, 239 and 260+ for plural resistors which are embedded, incased or housed, subclass 295, for plural resistance elements connected by a jumper, subclass 299, for plural helix or winding type resistor with support, subclass 319, for plural resistors extending between supports and subclass 320, for plural resistors with mounting or supporting means in general.