Fleuret de forage,申请号FR19640974298-传众专利搜索

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发明名称	Fleuret de forage
摘要
申请公布号	FR1393107(A)	申请公布日期	1965.03.19
申请号	FR19640974298	申请日期	1964.05.13
申请人	SANDVIKENS JERNVERKS AKTIEBOLAG	发明人
分类号	E21B10/40	主分类号	E21B10/40
代理机构		代理人
主权项
地址

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