Perfectionnement apporté à la fabrication des outils de forage,申请号FR19580781486-传众专利搜索

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发明名称	Perfectionnement apporté à la fabrication des outils de forage
摘要
申请公布号	FR1217893(A)	申请公布日期	1960.05.06
申请号	FR19580781486	申请日期	1958.12.12
申请人	CRAELIUS	发明人	JARDIN J.
分类号	E21B10/46;E21B10/60	主分类号	E21B10/46
代理机构		代理人
主权项
地址

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