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发明名称
Sewer pipe stopper
摘要
申请公布号
GB2080914(A)
申请公布日期
1982.02.10
申请号
GB19810015446
申请日期
1981.05.20
申请人
TREACY BROTHERS (CONTRACTORS) LTD
发明人
分类号
E03F7/02;F16L17/10;F16L55/105;F16L55/16;(IPC1-7):F16L55/12;F16J15/00;F16L17/00
主分类号
E03F7/02
代理机构
代理人
主权项
地址
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