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发明名称
Improvement in the construction of floors and roofs and supporting beams therefor
摘要
申请公布号
GB576171(A)
申请公布日期
1946.03.21
申请号
GB19440002285
申请日期
1944.02.08
申请人
STEPHEN STAFFORD
发明人
分类号
E04B5/06
主分类号
E04B5/06
代理机构
代理人
主权项
地址
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