Procédé et appareils pour la recherche des gisements ou des roches magnétiques,申请号FRD710760-传众专利搜索

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发明名称	Procédé et appareils pour la recherche des gisements ou des roches magnétiques
摘要
申请公布号	FR710760(A)	申请公布日期	1931.08.28
申请号	FRD710760	申请日期	1930.05.08
申请人	SOCIETE DE PROSPECTION ELECTRIQUE	发明人
分类号	G01R33/022	主分类号	G01R33/022
代理机构		代理人
主权项
地址

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