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发明名称
Perfectionnements aux systèmes téléphoniques
摘要
申请公布号
FR932546(A)
申请公布日期
1948.03.24
申请号
FRD932546
申请日期
1946.08.22
申请人
COMPAGNIE GENERALE DE CONSTRUCTIONS TELEPHONIQUES
发明人
GOHOREL FERNAND-PIERRE
分类号
H04Q3/00
主分类号
H04Q3/00
代理机构
代理人
主权项
地址
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