Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
Inventor
active
Compositions of polymers with sulfphate and/or sulfphonate group
Oral hygiene compositions and polymers active therein
Oral hygiene compositions and polymers active therein
Oral hygiene compositions and polymers active therein
Oral hygiene compositions and polymers active therein
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