US PATENT SUBCLASS 422 / 298
.~.~.~ And vaporizer; e.g., boiler, etc.

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

243  DF  PHYSICAL TYPE APPARATUS {8}
292  DF  .~ Apparatus for treating solid article or material with fluid chemical {4}
295  DF  .~.~ Including pressure treating chamber (above ambient) {3}
298.~.~.~ And vaporizer; e.g., boiler, etc. {1}
299  DF  .~.~.~.~> Constituting treating chamber

DEFINITION

Classification: 422/298

And vaporizer; e.g., boiler, etc.:

(under subclass 295) Apparatus having means to render the fluid gaseous.