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发明名称
HEAVE COMPENSATOR
摘要
申请公布号
IE44504(L)
申请公布日期
1977.09.18
申请号
IE19770000587
申请日期
1977.03.18
申请人
SOCIETE NATIONALE ELF AQUITAINE (PRODUCTION)
发明人
分类号
B63B27/36;E21B19/09;(IPC1-7):E21B19/09;B66C13/04
主分类号
B63B27/36
代理机构
代理人
主权项
地址
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