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发明名称
Tool joint protector
摘要
申请公布号
US2860013(A)
申请公布日期
1958.11.11
申请号
US19560568674
申请日期
1956.02.29
申请人
MEDEARIS JAMES F
发明人
MEDEARIS JAMES F.
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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