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发明名称
Reenforced concrete construction slab
摘要
申请公布号
US2003251(A)
申请公布日期
1935.05.28
申请号
US19340726539
申请日期
1934.05.19
申请人
CUMMINGS WILLIAM P
发明人
CUMMINGS WILLIAM P.
分类号
E04C2/06
主分类号
E04C2/06
代理机构
代理人
主权项
地址
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