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发明名称
Prestressing device
摘要
申请公布号
ZA200905073(B)
申请公布日期
2010.04.28
申请号
ZA20090005073
申请日期
2009.07.21
申请人
HOLFELD, BARRY GRAEME
发明人
HOLFELD, BARRY GRAEME
分类号
E21D
主分类号
E21D
代理机构
代理人
主权项
地址
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