US PATENT SUBCLASS 34 / 450
.~.~.~.~ Combustion of gas or vapor

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}
448  DF  .~.~.~ Vapor or gas treatment {2}
450.~.~.~.~ Combustion of gas or vapor

DEFINITION

Classification: 34/450

Combustion of gas or vapor:

(under subclass 448) Process wherein the treating gas or vapor undergoes burning during the treating process.