US PATENT SUBCLASS 366 / 324
.~.~.~ Apertured or notched


Current as of: June, 1999
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366 /   HD   AGITATING

241  DF  STIRRER WITHIN STATIONARY MIXING CHAMBER {10}
279  DF  .~ Rotatable stirrer {15}
318  DF  .~.~ Screw-type stirrer {6}
324.~.~.~ Apertured or notched


DEFINITION

Classification: 366/324

Apertured or notched:

(under subclass 318) Subject matter wherein the helical ribbon has an opening therethrough or a notch on the edge of the ribbon or the flow of material.

SEE OR SEARCH THIS CLASS, SUBCLASS:

320, for a helical ribbon with an open central portion.