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发明名称
Cover for opening in vertical sewage pipe and use thereof
摘要
申请公布号
DK155754(B)
申请公布日期
1989.05.08
申请号
DK19860000591
申请日期
1986.02.06
申请人
HOEJ, HEROLD HAANING
发明人
HOEJ, HEROLD HAANING
分类号
E03F;E03F3/00;E03F3/04;E03F7/06;F16L45/00;(IPC1-7):E03F3/04
主分类号
E03F
代理机构
代理人
主权项
地址
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