US PATENT SUBCLASS 34 / 145
.~.~ Gas or vapor circulation for contact with treated material

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

523  DF  APPARATUS {40}
143  DF  .~ Stationary press type {3}
145.~.~ Gas or vapor circulation for contact with treated material

DEFINITION

Classification: 34/145

(under subclass 143) Apparatus including means to pass a gas or vapor into contact with the material treated.

(1) Note. Presses with heated vented platens or presses having heated platens which separate to allow gas or vapor circulation (breathing) are not classified here but in other appropriate subclasses in this group.

SEE OR SEARCH CLASS

100, Presses,

92+, for presses, not elsewhere provided for, having means to heat, cool or dry the material pressed.