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发明名称
Mehrkanal-Trägerwellen-Fernsprechanlage.
摘要
申请公布号
CH299120(A)
申请公布日期
1954.05.31
申请号
CHD299120
申请日期
1952.02.21
申请人
N. V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
GLOEILAMPENFABRIEKEN N. V. PHILIPS'
分类号
H04J1/04
主分类号
H04J1/04
代理机构
代理人
主权项
地址
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