US PATENT SUBCLASS 34 / 620
.~.~.~ Including roller-type conveyor

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

523  DF  APPARATUS {40}
611  DF  .~ Sheet, web, or strand {3}
618  DF  .~.~ For flexible sheet, web, or strand {6}
620.~.~.~ Including roller-type conveyor

DEFINITION

Classification: 34/620

Including roller-type conveyor:

(under subclass 618) Subject matter including rotating cylinders that move the material.