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发明名称
Structural steel member
摘要
申请公布号
US2191788(A)
申请公布日期
1940.02.27
申请号
US19380183848
申请日期
1938.01.07
申请人
BENJAMIN F. TOMLIN
发明人
COLLINS TIMOTHY
分类号
E04C3/04;E04C3/09
主分类号
E04C3/04
代理机构
代理人
主权项
地址
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