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发明名称
MASKING TRANSMISSION OF INFORMATION
摘要
申请公布号
IE791491(L)
申请公布日期
1980.02.04
申请号
IE19790001491
申请日期
1979.08.08
申请人
SIEMENS AKT-GES
发明人
分类号
H04K1/06;H04L9/00;(IPC1-7):H04K1/06
主分类号
H04K1/06
代理机构
代理人
主权项
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