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发明名称
SUBSURFACE IRRIGATION AND DRAINAGE SYSTEMS
摘要
申请公布号
GB2036521(A)
申请公布日期
1980.07.02
申请号
GB19790040236
申请日期
1979.11.21
申请人
TAYLOR R
发明人
分类号
A01G25/06;E02B11/00;E02B13/00;(IPC1-7):A01G25/06
主分类号
A01G25/06
代理机构
代理人
主权项
地址
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