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发明名称
EXCHANGE SYSTEM
摘要
申请公布号
JPH0583757(A)
申请公布日期
1993.04.02
申请号
JP19910238032
申请日期
1991.09.18
申请人
TOSHIBA CORP;TOSHIBA TSUSHIN SYST ENG KK
发明人
CHIKEDERA TAKAMITSU;SUZUKI ATSUSHI
分类号
H04Q3/58;H04Q11/04
主分类号
H04Q3/58
代理机构
代理人
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地址
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