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发明名称
Building structure
摘要
申请公布号
US2590687(A)
申请公布日期
1952.03.25
申请号
US19480034669
申请日期
1948.06.23
申请人
H. H. ROBERTSON COMPANY
发明人
CRAFTON HENRY H.
分类号
E04D3/365
主分类号
E04D3/365
代理机构
代理人
主权项
地址
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