Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
Inventor
active
Catalyst system for injection molding polyurethanes
Dental prosthetic from hard, rigid, non-hydrophilic polyurethane
Energy-attenuating polyurethanes
Hair curler device
Integral skin microcellular polyester base polyurethane elastome
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