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发明名称
Improvements in the construction of suspended concrete floors
摘要
申请公布号
GB381749(A)
申请公布日期
1932.10.13
申请号
GB19310031539
申请日期
1931.11.14
申请人
TOM PICKLES
发明人
分类号
E04B5/23
主分类号
E04B5/23
代理机构
代理人
主权项
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