US PATENT SUBCLASS 34 / 534
.~.~.~.~ With door switch

Current as of: June, 1999
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34 /   HD   DRYING AND GAS OR VAPOR CONTACT WITH SOLIDS

523  DF  APPARATUS {40}
524  DF  .~ With automatic control {11}
526  DF  .~.~ Of plural operations {3}
527  DF  .~.~.~ Of specific operational sequence {5}
534.~.~.~.~ With door switch

DEFINITION

Classification: 34/534

With door switch:

(under subclass 527) Apparatus having an element that makes or breaks a control circuit that is mounted on the door of the apparatus.