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发明名称
Verfahren und Einrichtung zur Verschleierung gesprochener Nachrichten
摘要
申请公布号
DE856456(C)
申请公布日期
1952.11.20
申请号
DE1943P001327D
申请日期
1943.07.03
申请人
PATELHOLD PATENTVERWERTUNGS- & ELEKTRO-HOLDING A.-G.
发明人
GUANELLA GUSTAV DIPL.-ING.
分类号
H04K1/04
主分类号
H04K1/04
代理机构
代理人
主权项
地址
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