US PATENT SUBCLASS 510 / 172
.~.~.~ For silk printing screen


Current as of: June, 1999
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510 /   HD   CLEANING COMPOSITIONS FOR SOLID SURFACES, AUXILIARY COMPOSITIONS THEREFOR, OR PROCESSES OF PREPARING THE COMPOSITIONS

108  DF  CLEANING COMPOSITIONS OR PROCESSES OF PREPARING (E.G., SODIUM BISULFATE COMPONENT, ETC.) {21}
109  DF  .~ For cleaning a specific substrate or removing a specific contaminant (e.g., for smoker's pipe, etc.) {50}
170  DF  .~.~ For ink recording or printing equipment, or mold therefor (e.g., ink jet recorder, etc.) {3}
172.~.~.~ For silk printing screen


DEFINITION

Classification: 510/172

For silk printing screen:

(under subclass 170) Compositions specialized for cleaning screens used in silk printing.