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经营范围
发明名称
Tubing anchor
摘要
申请公布号
US3406758(A)
申请公布日期
1968.10.22
申请号
US19650461592
申请日期
1965.05.21
申请人
JOHN S. PAGE JR.
发明人
JR. JOHN S. PAGE,
分类号
E21B23/04
主分类号
E21B23/04
代理机构
代理人
主权项
地址
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