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发明名称
Improvements in and relating to frequency variation response apparatus
摘要
申请公布号
GB613212(A)
申请公布日期
1948.11.24
申请号
GB19460017101
申请日期
1946.06.05
申请人
THE BRITISH THOMSON-HOUSTON COMPANY LIMITED
发明人
分类号
H03J7/04
主分类号
H03J7/04
代理机构
代理人
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地址
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