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发明名称
Improvements in or relating to a supervision system for the operation of an amplifier
摘要
申请公布号
GB679357(A)
申请公布日期
1952.09.17
申请号
GB19510011588
申请日期
1951.05.17
申请人
FRANCOIS JOB
发明人
分类号
H03F1/54
主分类号
H03F1/54
代理机构
代理人
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