Tête de forage et porte-outils de forage perfectionnés,申请号FR19610871883-传众专利搜索

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发明名称	Tête de forage et porte-outils de forage perfectionnés
摘要
申请公布号	FR1298806(A)	申请公布日期	1962.07.13
申请号	FR19610871883	申请日期	1961.08.30
申请人	THE TIMKEN ROLLER BEARING COMPANY	发明人
分类号	E21B10/36;E21B10/62;E21B10/633	主分类号	E21B10/36
代理机构		代理人
主权项
地址

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