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发明名称
FREQUENCY CHANGERS
摘要
申请公布号
IE17689(L)
申请公布日期
1944.11.06
申请号
IE19440000134
申请日期
1944.05.08
申请人
AUTOMATIC ELECTRIC LABORATORIES INC
发明人
分类号
H02M5/06;(IPC1-7):H02M5/06
主分类号
H02M5/06
代理机构
代理人
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