Coal winning apparatus,申请号GB19620015632-传众专利搜索

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发明名称	Coal winning apparatus
摘要
申请公布号	GB967602(A)	申请公布日期	1964.08.26
申请号	GB19620015632	申请日期	1962.04.24
申请人	STAMICARBON N.V.	发明人
分类号	E21C35/12;E21F13/06	主分类号	E21C35/12
代理机构		代理人
主权项
地址

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