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发明名称
FREQUENCY REDUCING SYSTEMS
摘要
申请公布号
IE14889(L)
申请公布日期
1937.07.14
申请号
IED14889
申请日期
1936.12.10
申请人
ASSSOCIATED 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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