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发明名称
Structural unit
摘要
申请公布号
US1766181(A)
申请公布日期
1930.06.24
申请号
US19270165578
申请日期
1927.02.03
申请人
THE MACOMBER STEEL COMPANY
发明人
MACOMBER STANLEY
分类号
E04C3/04;E04C3/08
主分类号
E04C3/04
代理机构
代理人
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