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经营范围
发明名称
FREMGANGSMAATE OG ANORDNING TIL BLOKKERING OG FRIGJOERING AV ET BOREROER MED HOVEDSAKELIG VERTIKAL AKSE
摘要
申请公布号
NO831524(A)
申请公布日期
1983.10.31
申请号
NO19830001524
申请日期
1983.04.29
申请人
BRISSONNEAU & LOTZ MARINE S.A.,
发明人
LEMAIRE, MARC,;ROC`H, ROLAND LE,
分类号
E21B19/10;E21B19/16;(IPC1-7):E21B/
主分类号
E21B19/10
代理机构
代理人
主权项
地址
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