US Patent Class 134
CLEANING AND LIQUID CONTACT WITH SOLIDS-- Main Headings



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Current as of: June, 1999
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CLASS NOTES
*  DF  PROCESSES {23}
*  DF  APPARATUS {34}
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CROSS-REFERENCE ART COLLECTIONS
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900  DF  PAINT ROLLER
901  DF  CONTACT LENS
902  DF  SEMICONDUCTOR WAFFER