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发明名称
Improvements in or relating to soil drainage
摘要
申请公布号
GB1067405(A)
申请公布日期
1967.05.03
申请号
GB19650021530
申请日期
1965.05.21
申请人
WAVIN PIPES LIMITED;EDWARD THOMAS HANRAHAN
发明人
分类号
E02B11/00
主分类号
E02B11/00
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