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发明名称
Structural grating
摘要
申请公布号
US2404570(A)
申请公布日期
1946.07.23
申请号
US19440558181
申请日期
1944.10.11
申请人
CARNEGIE-ILLINOIS STEEL CORPORATION
发明人
ELLIOTT EDWIN C.
分类号
E04C2/42
主分类号
E04C2/42
代理机构
代理人
主权项
地址
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