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经营范围
发明名称
Improvements in electrical insulation
摘要
申请公布号
GB503376(A)
申请公布日期
1939.04.05
申请号
GB19380016366
申请日期
1938.06.01
申请人
E. I. DU PONT DE NEMOURS AND CO.
发明人
分类号
H01B3/18
主分类号
H01B3/18
代理机构
代理人
主权项
地址
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