US PATENT SUBCLASS 34 / 254
.~.~ Having heating or cooling means

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

245  DF  MATERIAL TREATED BY ELECTROMAGNETIC ENERGY {8}
250  DF  .~ Electrostatic field {4}
254.~.~ Having heating or cooling means

DEFINITION

Classification: 34/254

Having heating or cooling means:

(under subclass 250) Subject matter including means to vary the temperature of the material, a treating gas or vapor, or other parts of a drying system.