US PATENT SUBCLASS 34 / 178
.~.~ Shelf-to-shelf or zigzag treated material flow

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

523  DF  APPARATUS {40}
165  DF  .~ Gravity flow type {7}
178.~.~ Shelf-to-shelf or zigzag treated material flow

DEFINITION

Classification: 34/178

(under subclass 165) Apparatus having shelf to shelf or zigzag structure as defined in subclass 171.

(1) Note. Notes to subclass 171 and indented subclasses apply here.