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发明名称
Sélecteur pour centraux téléphoniques
摘要
申请公布号
FR675037(A)
申请公布日期
1930.02.05
申请号
FRD675037
申请日期
1929.05.14
申请人
发明人
MERK FRIEDRICH
分类号
H01H67/12
主分类号
H01H67/12
代理机构
代理人
主权项
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