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发明名称
Reenforced concrete slab and core therefor
摘要
申请公布号
US2070577(A)
申请公布日期
1937.02.16
申请号
US19320598913
申请日期
1932.03.15
申请人
JAMES I. BOWMAN
发明人
BOWMAN ARTHUR M.;BOWMAN JAMES I.
分类号
E04B5/19;E04B5/32;E04G15/06
主分类号
E04B5/19
代理机构
代理人
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