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1.发明授权
公开(公告)号：US3019185A
公开(公告)日：1962-01-30
申请号：US58615756
申请日：1956-05-21
Applicant: PROCEDES IND ET CHARBONS ACTIF
Inventor： CLAUDE FOUILLAND , JEAN MONTAGNON
CPC classification number: C02F1/76 , C02F2103/026 , C02F2201/002 , C02F2303/04
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