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经营范围
发明名称
A shroud for deflecting wet concrete into an annular space around a manhole
摘要
申请公布号
GB2460709(A)
申请公布日期
2009.12.09
申请号
GB20080017858
申请日期
2008.10.01
申请人
WAYNE WILLIAMS
发明人
WAYNE WILLIAMS
分类号
E02D29/12;B28B13/00
主分类号
E02D29/12
代理机构
代理人
主权项
地址
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