Appareil de forage vertical,申请号FR19600820799-传众专利搜索

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发明名称	Appareil de forage vertical
摘要
申请公布号	FR1250358(A)	申请公布日期	1961.01.06
申请号	FR19600820799	申请日期	1960.03.09
申请人	SALZGITTER MASCHINEN AKTIENGESELLSCHAFT	发明人
分类号	E21B7/02	主分类号	E21B7/02
代理机构		代理人
主权项
地址

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