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经营范围
发明名称
REPAIRING LEAKS IN UNDERGRAOUND PIPES
摘要
申请公布号
GB2018382(B)
申请公布日期
1982.04.07
申请号
GB19790009903
申请日期
1979.03.21
申请人
NAKASHIN Y
发明人
分类号
F16L55/16;F16L55/164;F16L55/18;(IPC1-7):F16L55/18
主分类号
F16L55/16
代理机构
代理人
主权项
地址
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