Enlarging tool for wells,申请号US19350001799-传众专利搜索

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发明名称	Enlarging tool for wells
摘要
申请公布号	US2008583(A)	申请公布日期	1935.07.16
申请号	US19350001799	申请日期	1935.01.14
申请人	JANSSEN JOHN H	发明人	JANSSEN JOHN H.
分类号	E21B10/32	主分类号	E21B10/32
代理机构		代理人
主权项
地址

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