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发明名称
TELECONFERENCING METHOD FOR A SECURE KEY MANAGEMENT SYSTEM
摘要
申请公布号
EP0402083(A3)
申请公布日期
1992.05.06
申请号
EP19900306071
申请日期
1990.06.04
申请人
MOTOROLA, INC.
发明人
MIHM, THOMAS JAMES JR.
分类号
H04L9/08;H04M3/56;H04M11/06;(IPC1-7):H04M3/56;H04K1/00;H04L12/18
主分类号
H04L9/08
代理机构
代理人
主权项
地址
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