US PATENT SUBCLASS 34 / 225
.~.~.~.~.~ In wall, ceiling, or floor

Current as of: June, 1999
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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}
219  DF  .~.~.~ Recirculation of treating gas or vapor {5}
224  DF  .~.~.~.~ Plural gas or vapor inlets and/or outlets {1}
225.~.~.~.~.~ In wall, ceiling, or floor

DEFINITION

Classification: 34/225

(under subclass 224) Apparatus in which one or more of the partitions forming the material treating chamber are provided with plural openings.

(1) Note. This includes foraminous walls, such as walls formed of slats or pervious fabrics.

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