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发明名称
REMOVING IRREGULARITIES IN OR ENLARGING A BURIED DUCT
摘要
申请公布号
GB2122299(A)
申请公布日期
1984.01.11
申请号
GB19830015982
申请日期
1983.06.10
申请人
IAN ROLAND * YARNELL
发明人
IAN ROLAND * YARNELL
分类号
B08B9/043;E03F9/00;(IPC1-7):B08B9/02
主分类号
B08B9/043
代理机构
代理人
主权项
地址
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