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经营范围
发明名称
Improvements relating to cellular floors for buildings
摘要
申请公布号
GB420062(A)
申请公布日期
1934.11.16
申请号
GB19330004745
申请日期
1933.02.16
申请人
H. H. ROBERTSON COMPANY
发明人
分类号
E04B5/48
主分类号
E04B5/48
代理机构
代理人
主权项
地址
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