Electrical prospecting method and apparatus,申请号US19380222610-传众专利搜索

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发明名称	Electrical prospecting method and apparatus
摘要
申请公布号	US2222136(A)	申请公布日期	1940.11.19
申请号	US19380222610	申请日期	1938.08.02
申请人	SPERRY-SUN WELL SURVEYING COMPANY	发明人	BAZZONI CHARLES B.;RAZEK JOSEPH
分类号	G01V3/34	主分类号	G01V3/34
代理机构		代理人
主权项
地址

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