US PATENT SUBCLASS 209 / 398
.~.~.~.~ Adjusting


Current as of: June, 1999
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209 /   HD   CLASSIFYING, SEPARATING, AND ASSORTING SOLIDS

233  DF  SIFTING {16}
363  DF  .~ Elements {7}
392  DF  .~.~ Dress {4}
397  DF  .~.~.~ Perforated sheet {2}
398.~.~.~.~ Adjusting


DEFINITION

Classification: 209/398

(under subclass 397) Devices including means whereby the size

of passages formed through sheets of material as defined in connection with the preceding subclass may be varied or adjusted.

SEE OR SEARCH THIS CLASS, SUBCLASS:

680+, for sorting special items by size employing gauging apertures.