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发明名称
Dispositif de support pour récepteurs téléphoniques
摘要
申请公布号
FR838533(A)
申请公布日期
1939.03.08
申请号
FRD838533
申请日期
1938.05.28
申请人
发明人
MEYER-COTTIER
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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