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发明名称
Concrete form
摘要
申请公布号
US2213159(A)
申请公布日期
1940.08.27
申请号
US19380220952
申请日期
1938.07.23
申请人
THE TRUSSED CONCRETE STEEL COMPANY, LIMITED
发明人
DURLEY THOMAS CLIFFORD
分类号
E04G17/00;E04G21/06
主分类号
E04G17/00
代理机构
代理人
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