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发明名称
Dispositif convertisseur de signaux
摘要
申请公布号
FR990032(A)
申请公布日期
1951.09.17
申请号
FRD990032
申请日期
1949.07.02
申请人
WESTERN ELECTRIC COMPANY, INCORPORATED
发明人
分类号
H01L29/00;H03D7/12;H03F3/04;H03F3/14
主分类号
H01L29/00
代理机构
代理人
主权项
地址
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