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发明名称
H2s recorder
摘要
申请公布号
US2232622(A)
申请公布日期
1941.02.18
申请号
US19400325575
申请日期
1940.03.23
申请人
E.I. DU PONT DE NEMOURS & COMPANY
发明人
MOSES DOUGLAS V.;JILK LAWRENCE T.
分类号
G01N21/86
主分类号
G01N21/86
代理机构
代理人
主权项
地址
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