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发明名称
Vorrichtung zur Übertragung von Signalen mittels Impulszeitmodulation
摘要
申请公布号
AT168849(B)
申请公布日期
1951.08.25
申请号
ATD168849
申请日期
1947.12.30
申请人
N. V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
分类号
主分类号
代理机构
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