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发明名称
Silo roof
摘要
申请公布号
US2187616(A)
申请公布日期
1940.01.16
申请号
US19380231742
申请日期
1938.09.26
申请人
COWIN AND COMPANY
发明人
COWIN JAMES
分类号
E04B7/10
主分类号
E04B7/10
代理机构
代理人
主权项
地址
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