Mining machine with roof cutter,申请号US19610108836-传众专利搜索

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发明名称	Mining machine with roof cutter
摘要
申请公布号	US3118657(A)	申请公布日期	1964.01.21
申请号	US19610108836	申请日期	1961.05.09
申请人	GEWERKSCHAFT EISENHUETTE WESTFALIA	发明人	LOBBE ARMIN
分类号	E21C27/34	主分类号	E21C27/34
代理机构		代理人
主权项
地址

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