Improvements in or relating to surface access covers,申请号GB20030006406-传众专利搜索

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发明名称	Improvements in or relating to surface access covers
摘要
申请公布号	GB0306406(D0)	申请公布日期	2003.04.23
申请号	GB20030006406	申请日期	2003.03.20
申请人	SAINT-GOBAIN PIPELINES PLC	发明人
分类号	E02D29/14	主分类号	E02D29/14
代理机构		代理人
主权项
地址

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