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经营范围
发明名称
CAST CONCRETE CYLINDRICAL PIPES
摘要
申请公布号
GB8306524(D0)
申请公布日期
1983.04.13
申请号
GB19830006524
申请日期
1983.03.09
申请人
CHARCON TUNNELS LTD
发明人
分类号
F16L9/08;(IPC1-7):F16L9/08
主分类号
F16L9/08
代理机构
代理人
主权项
地址
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