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发明名称
Building construction
摘要
申请公布号
US2055759(A)
申请公布日期
1936.09.29
申请号
US19320596208
申请日期
1932.03.02
申请人
NATIONAL GYPSUM COMPANY
发明人
VENZIE EDMOND F.
分类号
E04B9/26
主分类号
E04B9/26
代理机构
代理人
主权项
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