US PATENT SUBCLASS 34 / 649
.~.~.~.~.~.~ Including gas or vapor recirculation

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

523  DF  APPARATUS {40}
611  DF  .~ Sheet, web, or strand {3}
618  DF  .~.~ For flexible sheet, web, or strand {6}
623  DF  .~.~.~ Running length {5}
629  DF  .~.~.~.~ With gas or vapor circulation for contact with treated material {15}
647  DF  .~.~.~.~.~ Zigzag runs of treated material {4}
649.~.~.~.~.~.~ Including gas or vapor recirculation

DEFINITION

Classification: 34/649

Including gas or vapor recirculation:

(under subclass 647) Subject matter including means to capture and reuse some of the treating gas or vapor.