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发明名称
Building construction
摘要
申请公布号
US2191123(A)
申请公布日期
1940.02.20
申请号
US19380209326
申请日期
1938.05.21
申请人
JOHN L. BARR
发明人
SULLIVAN CHARLES J.
分类号
E04F21/00
主分类号
E04F21/00
代理机构
代理人
主权项
地址
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