US PATENT SUBCLASS 34 / 464
.~.~.~.~.~ Gas or vapor directed to opposed surfaces of material

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

282  DF  PROCESS {24}
443  DF  .~ Gas or vapor contact with treated material {17}
444  DF  .~.~ Sheet, web, or strand {7}
459  DF  .~.~.~ Running length of treated material {3}
463  DF  .~.~.~.~ Directing of gas or vapor {2}
464.~.~.~.~.~ Gas or vapor directed to opposed surfaces of material

DEFINITION

Classification: 34/464

Gas or vapor directed to opposed surfaces of material:

(under subclass 463) Process wherein the treating gas or vapor is directed to surfaces of the material that are directly opposite each other.