US PATENT SUBCLASS 34 / 100
.~.~.~.~ Recirculation of treating gas or vapor

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

523  DF  APPARATUS {40}
96  DF  .~ For hair on head {1}
97  DF  .~.~ With gas or vapor flow for contact {3}
99  DF  .~.~.~ Head conforming distributor {1}
100.~.~.~.~ Recirculation of treating gas or vapor

DEFINITION

Classification: 34/100

(under subclass 99) Apparatus including means to recirculate the treating gas or vapor.

(1) Note. For other subclasses involving gas or vapor recirculation see (1) Note to subclass 219 of this class.