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经营范围
发明名称
Soil moisture indicating gage
摘要
申请公布号
US2801538(A)
申请公布日期
1957.08.06
申请号
US19540441259
申请日期
1954.07.06
申请人
RANDOLPH MATSON
发明人
MATSON RANDOLPH
分类号
E02D1/02;G01N33/24
主分类号
E02D1/02
代理机构
代理人
主权项
地址
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