US PATENT SUBCLASS 34 / 176
.~.~ With treated material tubes

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}
176.~.~ With treated material tubes

DEFINITION

Classification: 34/176

(under subclass 165) Apparatus in which the material moves through tubes.