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发明名称
Verfahren der Wechselstromtelegrafie mit Tastung der Traegerfrequenz durch AEnderungder Phasenlage
摘要
申请公布号
DE888261(C)
申请公布日期
1953.08.31
申请号
DE1948P013384
申请日期
1948.10.02
申请人
SIEMENS & HALSKE AKTIENGESELLSCHAFT
发明人
RUDOLPH HANS
分类号
H04L27/20;H04L27/227
主分类号
H04L27/20
代理机构
代理人
主权项
地址
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