US PATENT SUBCLASS 524 / 905
ETCH MASKING COMPOSITIONS

Current as of: June, 1999
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524 /   HD   SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES

905ETCH MASKING COMPOSITIONS

DEFINITION

Classification: 524/905

ETCH MASKING COMPOSITIONS:

Subject matter involving composition suitable as an etch mask.