SOFTWALL MINING METHOD AND DEVICE,申请号EP19980918915-传众专利搜索

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发明名称	SOFTWALL MINING METHOD AND DEVICE
摘要
申请公布号	EP0980464(A1)	申请公布日期	2000.02.23
申请号	EP19980918915	申请日期	1998.05.01
申请人	IMC-AGRICO COMPANY	发明人	PETERSON, RANDALL, D.
分类号	E21C25/60;E21C41/16;(IPC1-7):E21C41/16	主分类号	E21C25/60
代理机构		代理人
主权项
地址

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