Bohrkopf fuer Gesteinsbohrer mit Hartmetall-Schneidenkoerper,申请号DE1953S035994-传众专利搜索

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发明名称	Bohrkopf fuer Gesteinsbohrer mit Hartmetall-Schneidenkoerper
摘要
申请公布号	DE1021305(B)	申请公布日期	1957.12.27
申请号	DE1953S035994	申请日期	1953.10.22
申请人	SANDVIKENS JERNVERKS AKTIEBOLAG	发明人	BYLUND NILS AXELSSON
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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