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发明名称
Perfectionnement aux dispositifs de sélection d'abonés à plusieurs lignes
摘要
申请公布号
FR1107854(A)
申请公布日期
1956.01.05
申请号
FRD1107854
申请日期
1947.07.11
申请人
COMPAGNIE INDUSTRIELLE DES TELEPHONES
发明人
LESIGNE HENRI-LOUIS
分类号
H04Q3/00;H04Q3/42
主分类号
H04Q3/00
代理机构
代理人
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