METHOD OF UNDERGROUND MINING,申请号IL19760049894-传众专利搜索

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发明名称	METHOD OF UNDERGROUND MINING
摘要
申请公布号	IL49894(A)	申请公布日期	1978.06.15
申请号	IL19760049894	申请日期	1976.06.24
申请人	CANADIAN INDUSTRIES LTD	发明人
分类号	E21C41/16;E21C41/22;E21D9/00;E21D13/00;F42D1/00;(IPC1-7):E21C41/06	主分类号	E21C41/16
代理机构		代理人
主权项
地址

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