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经营范围
发明名称
Dispositif téléphonique auxiliaire
摘要
申请公布号
FR1092196(A)
申请公布日期
1955.04.19
申请号
FRD1092196
申请日期
1954.02.02
申请人
发明人
GOMEZ JUAN BERGUA
分类号
H04M1/21
主分类号
H04M1/21
代理机构
代理人
主权项
地址
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