US PATENT SUBCLASS 520 / 1
SYNTHETIC RESINS OR NATURAL RUBBERS
Current as of:
June, 1999
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SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES
1
SYNTHETIC RESINS OR NATURAL RUBBERS
DEFINITION
Classification: 520/1
SYNTHETIC RESINS OR NATURAL RUBBERS
Subject matter involving synthetic resins, or natural rubbers preparation, or treatment thereof; compositions containing synthetic resins or natural rubbers preparation or treatment thereof.
