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发明名称
Verfahren und Vorrichtung zur Geheimhaltung von Signalwechsel-stroemen waehrend der UEbertragung
摘要
申请公布号
DE1064998(B)
申请公布日期
1959.09.10
申请号
DE1958T014624
申请日期
1958.01.15
申请人
TELEFONBAU UND NORMALZEIT G.M.B.H.
发明人
GUTE HANS HEINRICH
分类号
H04K1/06
主分类号
H04K1/06
代理机构
代理人
主权项
地址
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