Method of conducting geological survey,申请号US19290412761-传众专利搜索

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发明名称	Method of conducting geological survey
摘要
申请公布号	US1951760(A)	申请公布日期	1934.03.20
申请号	US19290412761	申请日期	1929.12.09
申请人	LEE FREDERICK W	发明人	LEE FREDERICK W.
分类号	G01V3/04	主分类号	G01V3/04
代理机构		代理人
主权项
地址

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