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公开(公告)号:JPS63279993A
公开(公告)日:1988-11-17
申请号:JP9263988
申请日:1988-04-14
Applicant: CONOCO INC
Inventor: CHIYAARUSU NIKUSON HOWAITO , FUIKURII ROSHIYUDEI BOTOROSU
IPC: E02B17/02 , B63B21/50 , B63B35/44