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发明名称
Sätt att nedlägga täckdikningsrör
摘要
申请公布号
FI32075(A)
申请公布日期
1961.09.11
申请号
FID32075
申请日期
1959.05.15
申请人
发明人
NARS HUGO
分类号
E02B11/02;(IPC1-7):E02B11/02
主分类号
E02B11/02
代理机构
代理人
主权项
地址
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