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发明名称
COMMUNICATIONS EXCHANGE
摘要
申请公布号
GB8413138(D0)
申请公布日期
1984.06.27
申请号
GB19840013138
申请日期
1981.01.26
申请人
HERZL LAOR
发明人
分类号
G02B6/32;G02B6/35;G02B6/42;H04Q3/52;(IPC1-7):H04B9/00
主分类号
G02B6/32
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代理人
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