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公开(公告)号：US3422069A
公开(公告)日：1969-01-14
申请号：US3422069D
申请日：1966-08-08
Applicant: MONTEDISON SPA
Inventor： NATTA GIULIO , MAZZANTI GIORGIO , BINAGHI MARCO , POZZI GIANCARLO , ODDO NINO , ZAMBONI VALENTINO , PREGAGLIA GIANFRANCO
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