Méthode et dispositifs pour sceller localement les tubes de sondage dans le terrain,申请号FRD868771-传众专利搜索

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发明名称	Méthode et dispositifs pour sceller localement les tubes de sondage dans le terrain
摘要
申请公布号	FR868771(A)	申请公布日期	1942.01.15
申请号	FRD868771	申请日期	1940.09.06
申请人	SOCIETE DE PROSPECTION ELECTRIQUE	发明人
分类号	E21B33/14;E21B43/112	主分类号	E21B33/14
代理机构		代理人
主权项
地址

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