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发明名称
THIN PRE-STRESSED CONCRETE SLAB
摘要
申请公布号
CA831732(A)
申请公布日期
1970.01.13
申请号
CAD831732
申请日期
申请人
THE FLEXICORE COMPANY
发明人
DAVID J. LA GUE
分类号
主分类号
代理机构
代理人
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