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发明名称
Floor and beam construction
摘要
申请公布号
US2022622(A)
申请公布日期
1935.11.26
申请号
US19300484186
申请日期
1930.09.24
申请人
TRUSCON STEEL COMPANY
发明人
KAHN JULIUS
分类号
E04B5/29;E04B5/40
主分类号
E04B5/29
代理机构
代理人
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