Vor Kopf arbeitende und auf Raupen verfahrbare Gewinnungsmaschine fuer den Bergbau,申请号DE1956J011489-传众专利搜索

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发明名称	Vor Kopf arbeitende und auf Raupen verfahrbare Gewinnungsmaschine fuer den Bergbau
摘要
申请公布号	DE1164953(B)	申请公布日期	1964.03.12
申请号	DE1956J011489	申请日期	1956.03.28
申请人	JOY MANUFACTURING COMPANY	发明人
分类号	E21C27/12	主分类号	E21C27/12
代理机构		代理人
主权项
地址

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