US PATENT SUBCLASS 34 / 139
.~.~.~ With drum or receptacle enclosing housing

Current as of: June, 1999
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34 /   HD   DRYING AND GAS OR VAPOR CONTACT WITH SOLIDS

523  DF  APPARATUS {40}
108  DF  .~ Rotary drums or receptacles {7}
130  DF  .~.~ With gas or vapor flow for contact with treated material {5}
139.~.~.~ With drum or receptacle enclosing housing

DEFINITION

Classification: 34/139

(under subclass 130) Apparatus in which the drum or receptacle is totally or partially enclosed in a housing.

SEE OR SEARCH THIS CLASS, SUBCLASS:

135, through 138, for the subject matter there provided for plus enclosing housings.

595+, for such housings combined with heating means, and in subclass 131.

SEE OR SEARCH CLASS

198, Conveyors: Power-Driven,

860.1+, for a conveyor casing.