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经营范围
发明名称
Improvements in and relating to pipeline replacement
摘要
申请公布号
GB9508925(D0)
申请公布日期
1995.06.21
申请号
GB19950008925
申请日期
1995.05.02
申请人
VICTAULIC PLC
发明人
分类号
E21B7/30;F16L55/165
主分类号
E21B7/30
代理机构
代理人
主权项
地址
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