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经营范围
发明名称
DIGITAL EXCHANGE SYSTEM
摘要
申请公布号
EP0147865(A3)
申请公布日期
1985.08.21
申请号
EP19840116423
申请日期
1984.12.28
申请人
FUJITSU LIMITED
发明人
HATANO, TAKASHI;NARA, TAKASHI;KAWATO, YUTAKA;OKADA, SUMIE
分类号
H04Q11/04;(IPC1-7):H04Q11/04;H04M11/06;H04L11/20
主分类号
H04Q11/04
代理机构
代理人
主权项
地址
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