Setting and cementing tool,申请号US19380215275-传众专利搜索

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发明名称	Setting and cementing tool
摘要
申请公布号	US2145512(A)	申请公布日期	1939.01.31
申请号	US19380215275	申请日期	1938.06.22
申请人	HUDSON JOHN H;HUDSON HENRY G	发明人	HUDSON JOHN H.;HUDSON HENRY G.
分类号	E21B43/10	主分类号	E21B43/10
代理机构		代理人
主权项
地址

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