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发明名称
Liaison téléphonique bilatérale perfectionnée
摘要
申请公布号
FR1096523(A)
申请公布日期
1955.06.21
申请号
FRD1096523
申请日期
1953.12.18
申请人
SOCIETE D'ELECTRONIQUE ET D'AUTOMATISME
发明人
OULES MICHEL-LOUIS
分类号
H04M9/00
主分类号
H04M9/00
代理机构
代理人
主权项
地址
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