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发明名称
Perfectionnements aux systèmes téléphoniques
摘要
申请公布号
FR1049166(A)
申请公布日期
1953.12.28
申请号
FRD1049166
申请日期
1952.01.16
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
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地址
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