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发明名称
Method of making fireproof floor constructions
摘要
申请公布号
US1796851(A)
申请公布日期
1931.03.17
申请号
US19280278423
申请日期
1928.05.17
申请人
THE MACOMBER STEEL COMPANY
发明人
MACOMBER STANLEY
分类号
E04G17/18
主分类号
E04G17/18
代理机构
代理人
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地址
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