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发明名称
Perfectionnements aux systèmes de commande automatique de fréquence
摘要
申请公布号
FR862729(A)
申请公布日期
1941.03.13
申请号
FRD862729
申请日期
1940.01.03
申请人
MARCONI'S WIRELESS TELEGRAPH 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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