Coverslabs for manholes or inspection chambers,申请号GB19900005819-传众专利搜索

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发明名称	Coverslabs for manholes or inspection chambers
摘要
申请公布号	GB2242855(A)	申请公布日期	1991.10.16
申请号	GB19900005819	申请日期	1990.03.15
申请人	* CASWICK DEVELOPMENTS LTD	发明人	CHRISTOPHER JOHN * CAWTE
分类号	B28B23/00;E02D29/14	主分类号	B28B23/00
代理机构		代理人
主权项
地址

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