US PATENT SUBCLASS 239 / 218.5
.~.~ Screw or spiral conveyer

Current as of: June, 1999
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239 /   HD   FLUID SPRINKLING, SPRAYING, AND DIFFUSING

214  DF  SLINGER OR SPLASHER; OR DEFLECTOR ROTATED RELATIVE TO EFFLUENT {7}
215  DF  .~ With separate pump or movable conveyer means delivering to distributor {3}
218.5.~.~ Screw or spiral conveyer

DEFINITION

Classification: 239/218.5

(under subclass 215) Apparatus in which the movable means delivering to the distributor is of helical configuration.