Patent USA Patent USA Patent United States_ITM Patent №WO9425866A1 Patent USA №4209 744_ITM Patent № 2204129 (INTROS) Patent № 2589496 (INTROS-AUTO) Patent № 2634544 Patent № 2634366 Certificat PO Wintros Certificat PO Wintros-RTV Certificat PO Rope Strength Certificat PО Wintrocon Certificat PО Wintrocor Patent № 2760630 Patent № 2781153 Patent № 2781540
