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经营范围
发明名称
Irrigation signal
摘要
申请公布号
US2704046(A)
申请公布日期
1955.03.15
申请号
US19520307212
申请日期
1952.08.30
申请人
MORAGA DAVID J
发明人
MORAGA DAVID J.
分类号
G01F23/20
主分类号
G01F23/20
代理机构
代理人
主权项
地址
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