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经营范围
发明名称
An improved lattice beam
摘要
申请公布号
GB775991(A)
申请公布日期
1957.05.29
申请号
GB19540017355
申请日期
1954.06.12
申请人
DENIS WINFIELD COOPER
发明人
分类号
E04C3/16;E04C3/28;E04C3/29
主分类号
E04C3/16
代理机构
代理人
主权项
地址
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