Fleuret de perforatrice de roche,申请号FRD1014773-传众专利搜索

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发明名称	Fleuret de perforatrice de roche
摘要
申请公布号	FR1014773(A)	申请公布日期	1952.08.21
申请号	FRD1014773	申请日期	1950.03.17
申请人	SANDVIKENS JERNVERKS AKTIEBOLAG	发明人
分类号	E21B10/58	主分类号	E21B10/58
代理机构		代理人
主权项
地址

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