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发明名称
Grooved paving slabs
摘要
申请公布号
GB2221234(A)
申请公布日期
1990.01.31
申请号
GB19880017917
申请日期
1988.07.27
申请人
* THE UNIVERSITY OF NOTTINGHAM
发明人
ALLAN GEDDES * DODDS
分类号
A61H3/06;E01C5/06
主分类号
A61H3/06
代理机构
代理人
主权项
地址
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