US PATENT SUBCLASS 100 / 331
.~.~.~.~ Plural stage or pass

Current as of: June, 1999
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100 /   HD   PRESSES

70 R  DF  WITH ADDITIONAL TREATMENT OF MATERIAL {6}
92  DF  .~ Heating, cooling, or drying {4}
305  DF  .~.~ In press {4}
327  DF  .~.~.~ Roll-type press {6}
331.~.~.~.~ Plural stage or pass

DEFINITION

Classification: 100/331

Plural stage or pass:

(under subclass 327) Apparatus wherein more than one cylindrical pressure surface is temperature conditioned.

SEE OR SEARCH THIS CLASS, SUBCLASS:

161+, for a plural stage or pass roller-type press without temperature conditioning means.