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发明名称
PRIVATE BRANCH EXCHANGE SYSTEM
摘要
申请公布号
JPS6342558(A)
申请公布日期
1988.02.23
申请号
JP19860186381
申请日期
1986.08.08
申请人
NIPPON DENKI TSUSHIN SYST KK
发明人
KAWATANI IKUO
分类号
H04M3/42
主分类号
H04M3/42
代理机构
代理人
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地址
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