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经营范围
发明名称
HUMIDITY SENSING ELEMENT
摘要
申请公布号
US3440881(A)
申请公布日期
1969.04.29
申请号
USD3440881
申请日期
1967.09.27
申请人
JOHNSON SERVICE CO.
发明人
PAUL E. THOMA
分类号
G01N19/10;(IPC1-7):G01N25/56
主分类号
G01N19/10
代理机构
代理人
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地址
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