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发明名称
LOCATING AND ANCHORING DEVICE FOR WELL TOOLS
摘要
申请公布号
US3507329(A)
申请公布日期
1970.04.21
申请号
USD3507329
申请日期
1968.11.25
申请人
HAROLD BROWN CO.
发明人
DEWEY C. STONE JR.
分类号
E21B23/02;(IPC1-7):E21B23/02
主分类号
E21B23/02
代理机构
代理人
主权项
地址
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