Dispositif de forage, en particulier pour trous de sondage,申请号FR19620894699-传众专利搜索

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发明名称	Dispositif de forage, en particulier pour trous de sondage
摘要
申请公布号	FR1324475(A)	申请公布日期	1963.04.19
申请号	FR19620894699	申请日期	1962.04.17
申请人	ATLAS COPCO AKTIEBOLAG	发明人
分类号	E21B19/08	主分类号	E21B19/08
代理机构		代理人
主权项
地址

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