Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
Inventor
active
Polyurethane-based, compact moldings or moldings having a cellul
Polyurethane-based, compact moldings or moldings having a cellul
Preparation of polyurethanes having improved curing
Prepolymers containing isocyanate groups
Prepolymers containing isocyanate groups
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