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发明名称
Enregistreurs pour système de téléphonie automatique
摘要
申请公布号
FR970177(A)
申请公布日期
1951.01.02
申请号
FRD970177
申请日期
1948.08.05
申请人
LE MATERIEL TELEPHONIQUE
发明人
BOREL PIERRE;HENQUET ANDRE-JEAN;ANDRES LOUIS-CHARLES
分类号
H04Q3/42
主分类号
H04Q3/42
代理机构
代理人
主权项
地址
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