MULTILAYER WALL OF PLASTIC
LUCEK,JIRI,CS, VASATKO,EDUARD,CS, TRAVNICEK,JIRI,CS, SUCHARDA,ZBYNEK,CS, VESELY,JAN,CS, PIHERT,DOBROMIL,CS, LANDA,VACLAV,CS, KAVALEK,JOSEF,CS
Year of Publication 30.12.1977
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Year of Publication 30.12.1977
Patent