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发明名称
Calculator and direct reading humidity indicator
摘要
申请公布号
US1972089(A)
申请公布日期
1934.09.04
申请号
US19320631715
申请日期
1932.09.03
申请人
DUSINBERRE HENRY W
发明人
DUSINBERRE HENRY W.
分类号
G01N25/62
主分类号
G01N25/62
代理机构
代理人
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