Appareil de forage,申请号FR19620919961-传众专利搜索

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发明名称	Appareil de forage
摘要
申请公布号	FR1359144(A)	申请公布日期	1964.04.24
申请号	FR19620919961	申请日期	1962.12.28
申请人	SCHIELD BANTAM COMPANY	发明人
分类号	E21B3/04;E21B7/02	主分类号	E21B3/04
代理机构		代理人
主权项
地址

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