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发明名称
Perfectionnements aux circuits électriques de contrôle
摘要
申请公布号
FR1027985(A)
申请公布日期
1953.05.18
申请号
FRD1027985
申请日期
1950.07.21
申请人
ELECTRIC & MUSICAL INDUSTRIES LIMITED
发明人
分类号
H04N5/20;H04N5/202
主分类号
H04N5/20
代理机构
代理人
主权项
地址
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