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经营范围
发明名称
Gas anchor
摘要
申请公布号
GB1006739(A)
申请公布日期
1965.10.06
申请号
GB19640010334
申请日期
1964.03.11
申请人
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V.
发明人
ROS NICO CORNELIS JAN;OOSTERHOUT JOHANNES JOZEF MARIA VAN
分类号
E21B43/38
主分类号
E21B43/38
代理机构
代理人
主权项
地址
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