IMPROVEMENTS RELATING TO DRAINAGE CHANNELS,申请号GB19890002197-传众专利搜索

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发明名称	IMPROVEMENTS RELATING TO DRAINAGE CHANNELS
摘要
申请公布号	GB2227775(B)	申请公布日期	1993.01.27
申请号	GB19890002197	申请日期	1989.02.01
申请人	* FREDERICK JONES & SON	发明人	FREDERICK RICHARD * JONES
分类号	E01C9/00	主分类号	E01C9/00
代理机构		代理人
主权项
地址

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