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发明名称
PAVING BRICKS FOR CONSTRUCTING STEPS
摘要
申请公布号
GB2257168(A)
申请公布日期
1993.01.06
申请号
GB19910012394
申请日期
1991.06.10
申请人
KEVIN * BROWN
发明人
KEVIN * BROWN
分类号
E04B2/08;E04C1/39;E04F11/116
主分类号
E04B2/08
代理机构
代理人
主权项
地址
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