Method of drilling lateral bores,申请号US19420428409-传众专利搜索

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发明名称	Method of drilling lateral bores
摘要
申请公布号	US2344277(A)	申请公布日期	1944.03.14
申请号	US19420428409	申请日期	1942.01.27
申请人	ZUBLIN JOHN A	发明人	ZUBLIN JOHN A.
分类号	E21B7/06	主分类号	E21B7/06
代理机构		代理人
主权项
地址

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