US PATENT SUBCLASS 34 / 233
.~.~.~.~ In wall, ceiling, or floor

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

523  DF  APPARATUS {40}
201  DF  .~ Houses, kilns, and containers {6}
218  DF  .~.~ With gas or vapor circulation for contact with treated material {8}
232  DF  .~.~.~ Plural gas or vapor inlets and/or outlets {1}
233.~.~.~.~ In wall, ceiling, or floor

DEFINITION

Classification: 34/233

(under subclass 232) Apparatus having openings in the wall, ceiling or floor as defined in subclass 225.

SEE OR SEARCH THIS CLASS, SUBCLASS:

174, and 211, for superposed floors many of which are perforated.