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发明名称	SUPPORTING UNDERGROUND WORKINGS
摘要
申请公布号	GB9100273(D0)	申请公布日期	1991.02.20
申请号	GB19910000273	申请日期	1991.01.07
申请人	BRITISH REINFORCED CONCRETE ENGINEERING COMPANY LIMITED, THE	发明人
分类号		主分类号
代理机构		代理人
主权项
地址

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