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发明名称
Corona discharge protective device
摘要
申请公布号
US2277187(A)
申请公布日期
1942.03.24
申请号
US19380233376
申请日期
1938.10.05
申请人
TRANSTROM HENRY L
发明人
TRANSTROM HENRY L.
分类号
G09B23/18
主分类号
G09B23/18
代理机构
代理人
主权项
地址
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