Means and method of electrical prospecting,申请号US19290340481-传众专利搜索

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发明名称	Means and method of electrical prospecting
摘要
申请公布号	US1934447(A)	申请公布日期	1933.11.07
申请号	US19290340481	申请日期	1929.02.16
申请人	RICKER NORMAN H	发明人	RICKER NORMAN H.
分类号	G01V3/06	主分类号	G01V3/06
代理机构		代理人
主权项
地址

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