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发明名称
MEHRSTUFEN-VERSTAERKERSCHALTUNG
摘要
申请公布号
DE2821549(A1)
申请公布日期
1978.11.23
申请号
DE19782821549
申请日期
1978.05.17
申请人
HITACHI,LTD.
发明人
SEKI,KUNIO
分类号
H03F1/32;H03F1/34;H03F3/183;H03F3/213;(IPC1-7):H03F3/18
主分类号
H03F1/32
代理机构
代理人
主权项
地址
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