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经营范围
发明名称
Oil well pipe and casing protector
摘要
申请公布号
US3129982(A)
申请公布日期
1964.04.21
申请号
US19600040895
申请日期
1960.07.05
申请人
FAWICK CORPORATION
发明人
FAWICK THOMAS L.
分类号
E21B17/10
主分类号
E21B17/10
代理机构
代理人
主权项
地址
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