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发明名称
WELL TOOLS
摘要
申请公布号
CA712422(A)
申请公布日期
1965.06.29
申请号
CAD712422
申请日期
申请人
OTIS ENGINEERING CORPORATION
发明人
HARRY B. SCHRAMM;JOHN V. FREDD;GEORGE M. RAULINS
分类号
主分类号
代理机构
代理人
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