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公开(公告)号：JPS5527899A
公开(公告)日：1980-02-28
申请号：JP10449079
申请日：1979-08-16
Applicant: CONOCO INC
Inventor： JIYOOJI II SUMISU , GUREGORII ERU RORIMOO , PIITAA JIEI DE KURUIBAA , HENRII II MATSUKUFUAARIN
IPC: C01B17/04
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