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发明名称
Perfectionnements aux systèmes de commutation automatique
摘要
申请公布号
FR908832(A)
申请公布日期
1946.04.19
申请号
FRD908832
申请日期
1941.03.11
申请人
COMPAGNIE GENERALE DE CONSTRUCTIONS TELEPHONIQUES
发明人
分类号
H04Q3/42
主分类号
H04Q3/42
代理机构
代理人
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