Coal-winning arrangement,申请号GB19650014722-传众专利搜索

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发明名称	Coal-winning arrangement
摘要
申请公布号	GB1079274(A)	申请公布日期	1967.08.16
申请号	GB19650014722	申请日期	1965.04.07
申请人	GEWERKSCHAFT EISENHUETTE WESTFALIA	发明人
分类号	E21C27/18;E21C27/24;E21C27/34;E21C35/12	主分类号	E21C27/18
代理机构		代理人
主权项
地址

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