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经营范围
发明名称
MUDLINE SUSPENSION SYSTEM
摘要
申请公布号
US3459259(A)
申请公布日期
1969.08.05
申请号
USD3459259
申请日期
1966.09.09
申请人
MOBIL OIL CORP.
发明人
WILLIAM R. MATTHEWS
分类号
E21B7/128;E21B33/035;(IPC1-7):E21B33/03;E21B7/12;E21B43/01
主分类号
E21B7/128
代理机构
代理人
主权项
地址
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