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发明名称
Prestressing of concrete articles or structures
摘要
申请公布号
GB2221936(A)
申请公布日期
1990.02.21
申请号
GB19890018471
申请日期
1989.08.14
申请人
* TREVOR VALAIRE
发明人
TREVOR * VALAIRE
分类号
E04C5/12;E04G21/12;(IPC1-7):E04C5/12
主分类号
E04C5/12
代理机构
代理人
主权项
地址
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