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经营范围
发明名称
HYDRAULISCH BETAETIGTER RAEUMER.
摘要
申请公布号
AT77674(T)
申请公布日期
1992.07.15
申请号
AT19880307018T
申请日期
1988.07.29
申请人
NORSK HYDRO A.S.
发明人
BOE, EINAR
分类号
E21B10/32;(IPC1-7):E21B10/32
主分类号
E21B10/32
代理机构
代理人
主权项
地址
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