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发明名称
SECRET PROTECTIVE COMMUNICATION SYSTEM
摘要
申请公布号
JPH04124932(A)
申请公布日期
1992.04.24
申请号
JP19900246508
申请日期
1990.09.17
申请人
FUJITSU LTD
发明人
WATANABE NAOKI
分类号
H04L9/34;H04L9/28;H04L9/36
主分类号
H04L9/34
代理机构
代理人
主权项
地址
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