US PATENT SUBCLASS 34 / 517
.~.~.~ Vapor

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

282  DF  PROCESS {24}
443  DF  .~ Gas or vapor contact with treated material {17}
516  DF  .~.~ Special gas or vapor {1}
517.~.~.~ Vapor

DEFINITION

Classification: 34/517

Vapor:

(under subclass 516) Process in which a vapor is used.

(1) Note. It may be used either in a sequence with a gas or alone. When used in sequence with a gas, the gas may be air.

SEE OR SEARCH THIS CLASS, SUBCLASS:

402+, for use of vapor under vacuum or superatmospheric pressure.