US PATENT SUBCLASS 209 / 378
.~.~.~ Venting

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

Internet Version by PATENTEC © 1999      Terms of Use


209 /   HD   CLASSIFYING, SEPARATING, AND ASSORTING SOLIDS

233  DF  SIFTING {16}
363  DF  .~ Elements {7}
370  DF  .~.~ Bins and casings {5}
378.~.~.~ Venting

DEFINITION

Classification: 209/378

(under subclass 370) Casings for sifters having exits or vents for the air within the casings, other than passages or conduits for air currents propelled or sucked out by fans or equivalent forcing means.