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发明名称
METHOD FOR SPEECH ENCRYPTION WITH SIMULTANEOUS DATA TRANSMISSION IN NARROW BAND TRANSMISSION SYSTEM
摘要
申请公布号
EP0312693(A3)
申请公布日期
1990.08.16
申请号
EP19880109409
申请日期
1988.06.14
申请人
GRUNDIG E.M.V. ELEKTRO-MECHANISCHE VERSUCHSANSTALT MAX GRUNDIG HOLLAND. STIFTUNG & CO. KG.
发明人
BAUERSCHMIDT, WERNER GRUNDIG E.M.V. EL.MECH.
分类号
H04K1/04;H04M11/06;(IPC1-7):H04K1/04
主分类号
H04K1/04
代理机构
代理人
主权项
地址
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