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经营范围
发明名称
Subirrigation conduit
摘要
申请公布号
US3333422(A)
申请公布日期
1967.08.01
申请号
US19650483565
申请日期
1965.08.30
申请人
NEYLAND WILLIAM M
发明人
NEYLAND WILLIAM M.
分类号
E02B11/00
主分类号
E02B11/00
代理机构
代理人
主权项
地址
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