Gesteinsschlagbohrer mit radialen und exzentrisch gerichteten Hartmetallschneiden,申请号DE1936B176268D-传众专利搜索

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发明名称	Gesteinsschlagbohrer mit radialen und exzentrisch gerichteten Hartmetallschneiden
摘要
申请公布号	DE757076(C)	申请公布日期	1951.05.15
申请号	DE1936B176268D	申请日期	1936.11.18
申请人	BERTL ERHARD DIPL.-ING.	发明人	BERTL ERHARD DIPL.-ING.
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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