US PATENT SUBCLASS 209 / 402
.~.~.~.~ 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}
401  DF  .~.~.~ Woven {2}
402.~.~.~.~ Adjusting

DEFINITION

Classification: 209/402

(under subclass 401) Sifting devices including spaced intermeshing or crossing interconnected threads, wires, or rods forming sifting passages and means for varying or adjusting the size of the passages.