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发明名称
Floor construction
摘要
申请公布号
US2852815(A)
申请公布日期
1958.09.23
申请号
US19540456143
申请日期
1954.09.15
申请人
SALE WILLIAM H
发明人
SALE WILLIAM H.
分类号
E04F15/04
主分类号
E04F15/04
代理机构
代理人
主权项
地址
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