US PATENT SUBCLASS 422 / 242
.~ Positive pressure type

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

Internet Version by PATENTEC © 1999      Terms of Use


422 /   HD   CHEMICAL APPARATUS AND PROCESS DISINFECTING, DEODORIZING, PRESERVING, OR STERILIZING

129  DF  CHEMICAL REACTOR {28}
242.~ Positive pressure type

DEFINITION

Classification: 422/242

Positive pressure type:

(under subclass 129) Apparatus having means for operating the same above the ambient pressure.

SEE OR SEARCH THIS CLASS, SUBCLASS:

208, for apparatus having heat exchanger operating at a positive pressure.

226, for positive pressure apparatus with mixing means.

295, for physical type positive pressure reactor.