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发明名称
Appareil de téléphonie formant combiné microphone-casque
摘要
申请公布号
FR1283916(A)
申请公布日期
1962.02.09
申请号
FR19600848011
申请日期
1960.12.27
申请人
发明人
BONNIN LOUIS, ERNEST
分类号
H04M1/05
主分类号
H04M1/05
代理机构
代理人
主权项
地址
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