Appareil de forage,申请号FR19620897235-传众专利搜索

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发明名称	Appareil de forage
摘要
申请公布号	FR1323927(A)	申请公布日期	1963.04.12
申请号	FR19620897235	申请日期	1962.05.11
申请人	JERSEY PRODUCTION RESEARCH COMPANY	发明人
分类号	E21B4/18;E21B23/00;E21B23/04;E21B44/00	主分类号	E21B4/18
代理机构		代理人
主权项
地址

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