US PATENT SUBCLASS 34 / 433
.~.~ Gas or vapor flow to top and bottom of treated material

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

282  DF  PROCESS {24}
428  DF  .~ Cooling by gas or vapor contact {4}
433.~.~ Gas or vapor flow to top and bottom of treated material

DEFINITION

Classification: 34/433

Gas or vapor flow to top and bottom of treated material:

(under subclass 428) Process wherein the gas or vapor is directed to upper and lower surfaces of treated material.