Mining Support Crib,申请号GB20010022819-传众专利搜索

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发明名称	Mining Support Crib
摘要
申请公布号	GB0122819(D0)	申请公布日期	2001.11.14
申请号	GB20010022819	申请日期	2000.03.06
申请人	SHARP, DENNIS A;SHARP, GEORGE R	发明人
分类号	E21D15/04;E21D15/48	主分类号	E21D15/04
代理机构		代理人
主权项
地址

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