US PATENT SUBCLASS 219 / 407
.~.~.~.~ Embedded within or between walls of container

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

200  DF  HEATING DEVICES {14}
385  DF  .~ Combined with container, enclosure, or support for material to be heated {12}
391  DF  .~.~ Oven type {12}
406  DF  .~.~.~ With resistance heating means surrounding heating area {1}
407.~.~.~.~ Embedded within or between walls of container

DEFINITION

Classification: 219/407

(under subclass 406) Subject matter wherein the resistance heating means is described as embedded within or located between the inner and outer walls of the oven type enclosure means.

SEE OR SEARCH THIS CLASS, SUBCLASS:

424, for crucible or furnace with resistance heating element embedded in the wall thereof.

438+, for electrically heated vessels having resistance elements embedded within or between the walls thereof.