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发明名称
Vælger, især til automatiske telefonsystemer.
摘要
申请公布号
DK76923(C)
申请公布日期
1954.01.04
申请号
DK19500002221
申请日期
1950.07.04
申请人
N. V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
分类号
主分类号
代理机构
代理人
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