US PATENT SUBCLASS 209 / 506
.~.~ Riffles

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

422  DF  STRATIFIERS {6}
484  DF  .~ Elements {9}
506.~.~ Riffles {1}
507  DF  .~.~.~> Overhung

DEFINITION

Classification: 209/506

(under subclass 484) Devices including special constructions of projections, channels, or depressions on or in stratifying supports for material which effect the collection or affect the stratifications of the heavier material.