REINFORCED CONCRETE LINING SEGMENT INCORPORATING NON-RETURN VALVE,申请号GB19890012417-传众专利搜索

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发明名称	REINFORCED CONCRETE LINING SEGMENT INCORPORATING NON-RETURN VALVE
摘要
申请公布号	GB8912417(D0)	申请公布日期	1989.07.19
申请号	GB19890012417	申请日期	1989.05.31
申请人	CV BUCHAN (CONCRETE) LIMITED	发明人
分类号	E21D11/08	主分类号	E21D11/08
代理机构		代理人
主权项
地址

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