US PATENT SUBCLASS 219 / 723
.~.~.~ With additional safety feature

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

678  DF  MICROWAVE HEATING {15}
702  DF  .~ With control system {8}
722  DF  .~.~ Interlock circuitry and structure {2}
723.~.~.~ With additional safety feature

DEFINITION

Classification: 219/723

With additional safety feature:

(under subclass 722) Subject matter wherein an additional safeguard other than the interlock device provides deenergization of the power supply when a door or access cover is opened.

SEE OR SEARCH CLASS

361, Electricity: Electrical Systems and Devices,

1+, for the safety and protection of systems and devices.