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发明名称
Rectifier
摘要
申请公布号
US1887868(A)
申请公布日期
1932.11.15
申请号
US19250066627
申请日期
1925.11.03
申请人
OLD COLONY TRUST COMPANY
发明人
CHENEY THORNDIKE F.
分类号
H01J17/40
主分类号
H01J17/40
代理机构
代理人
主权项
地址
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