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发明名称
Rectifier for motion picture projectors
摘要
申请公布号
US1947240(A)
申请公布日期
1934.02.13
申请号
US19320637459
申请日期
1932.10.12
申请人
GENERAL ELECTRIC COMPANY
发明人
AMSDEN RALPH D.
分类号
H01L25/07
主分类号
H01L25/07
代理机构
代理人
主权项
地址
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