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发明名称
Linings for Sewers
摘要
申请公布号
GB2087456(A)
申请公布日期
1982.05.26
申请号
GB19810007944
申请日期
1981.03.13
申请人
CHANNELINE DESIGN CONSULTANTS LTD
发明人
分类号
E21D11/00;E21D11/38;(IPC1-7):E21D11/38
主分类号
E21D11/00
代理机构
代理人
主权项
地址
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