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公开(公告)号：US3113919A
公开(公告)日：1963-12-10
申请号：US837160
申请日：1960-02-12
Applicant: MINISTERUL IND PETROLULUI
Inventor： MARIUS HANGANUTIN , DUMITRU TANASESCU
CPC classification number: B01J19/088 , C10G15/00
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