IMPROVEMENTS IN/RELATING TO MINERAL MINING MACHINES,申请号GB19870028919-传众专利搜索

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发明名称	IMPROVEMENTS IN/RELATING TO MINERAL MINING MACHINES
摘要
申请公布号	GB8728919(D0)	申请公布日期	1988.01.27
申请号	GB19870028919	申请日期	1987.12.10
申请人	COAL INDUSTRY (PATENTS) LTD	发明人
分类号	E21C35/23	主分类号	E21C35/23
代理机构		代理人
主权项
地址

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