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发明名称
Improvements in and relating to low frequency amplifying systems
摘要
申请公布号
GB439307(A)
申请公布日期
1935.12.04
申请号
GB19340020204
申请日期
1934.07.10
申请人
STANDARD RADIO RELAY SERVICES LIMITED;PAUL ADORJAN
发明人
分类号
H03F3/28
主分类号
H03F3/28
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代理人
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