Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
Inventor
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Flexible high resilience polyurethane foam
Flexible polyurethane foam and process for preparing same
Flexible polyurethane foam with high durability
High-durability flexible polyurethane cold cure molded foam...
Preparation of polyoxyalkylene polyols, polymer polyols and flex
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