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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Polyester polyurethane foams having antistatic properties
Polyurethane foam based on combination of polyester resin and po
Polyurethane foam resistant to smoldering combustion containing
Polyurethane foam-filled foam resistant to combustion and method
Polyurethane foam-filled foams and method of producing same
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