US PATENT SUBCLASS 34 / 427
.~ Combined


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



34 /   HD   DRYING AND GAS OR VAPOR CONTACT WITH SOLIDS

282  DF  PROCESS {24}
427.~ Combined


DEFINITION

Classification: 34/427

Combined:

(under subclass 282) Process in which there is combined with the material drying or gas or vapor contact process a process step or steps of some other kind, not provided for above.

(1) Note. The material drying or gas or vapor contact process includes the treatment of the gas or vapor used or evolved.

SEE OR SEARCH THIS CLASS, SUBCLASS:

85, through 90, for corresponding apparatus combinations.

513, for processes involving the treatment of the material with a gas or vapor and the conservation of heat during the process.