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发明名称
Irrigation control
摘要
申请公布号
US3400909(A)
申请公布日期
1968.09.10
申请号
US19660567444
申请日期
1966.07.25
申请人
RALPH E. SHETTEL
发明人
SHETTEL RALPH E.
分类号
A01G25/06;F16L55/10
主分类号
A01G25/06
代理机构
代理人
主权项
地址
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