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发明名称
Structural column
摘要
申请公布号
US2195327(A)
申请公布日期
1940.03.26
申请号
US19390254202
申请日期
1939.02.02
申请人
DEAN GEORGE H
发明人
DEAN GEORGE H.
分类号
E04C3/30
主分类号
E04C3/30
代理机构
代理人
主权项
地址
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