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发明名称
Barriers
摘要
申请公布号
GB2322657(A)
申请公布日期
1998.09.02
申请号
GB19970023808
申请日期
1997.11.11
申请人
* RINGWAY LIMITED
发明人
DAVID JONATHAN * LUNDY
分类号
E01F13/02;E04H17/18;(IPC1-7):E01F13/02
主分类号
E01F13/02
代理机构
代理人
主权项
地址
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