US PATENT SUBCLASS 111 / 173
.~.~ Screw conveyor

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

Internet Version by PATENTEC © 1999      Terms of Use


111 /   HD   PLANTING

14  DF  DRILLING {12}
170  DF  .~ Having depositor feature {5}
173.~.~ Screw conveyor

DEFINITION

Classification: 111/173

Screw conveyor:

(under subclass 170) Apparatus including a material supporting surface which traverses a spiraling path to deliver material towards the open furrow as the machine advances.

SEE OR SEARCH CLASS

198, Conveyors: Power-Driven,

788, for spiral conveyors, per se.