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经营范围
发明名称
Brick arch formed by horizontal bricks
摘要
申请公布号
GB2207448(A)
申请公布日期
1989.02.01
申请号
GB19870018089
申请日期
1987.07.30
申请人
COLIN JAMES MICHAEL * KNOX
发明人
COLIN JAMES MICHAEL * KNOX
分类号
E04C1/39;E04C3/02;(IPC1-7):E04C1/24
主分类号
E04C1/39
代理机构
代理人
主权项
地址
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