US PATENT SUBCLASS 34 / 452
.~.~.~ Gas or vapor drawn through treated material

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


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}
452.~.~.~ Gas or vapor drawn through treated material {1}
453  DF  .~.~.~.~> Using vacuum roller

DEFINITION

Classification: 34/452

Gas or vapor drawn through treated material:

(under subclass 444) Process wherein the treating gas or vapor is pulled from one side of the material to the other side of the material.