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经营范围
发明名称
Composition of matter
摘要
申请公布号
US2161462(A)
申请公布日期
1939.06.06
申请号
US19380222217
申请日期
1938.07.30
申请人
E. I. DU PONT DE NEMOURS & COMPANY
发明人
FLENNER ALBERT L.
分类号
A01N25/30
主分类号
A01N25/30
代理机构
代理人
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地址
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