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发明名称
SYSTEM FOR SENDING EMERGENCY COMMUNICATION OF PRIVATE BRANCH EXCHANGE
摘要
申请公布号
JPS6345952(A)
申请公布日期
1988.02.26
申请号
JP19860189877
申请日期
1986.08.12
申请人
NEC CORP
发明人
TAKAHASHI SHUICHI
分类号
H04M3/42
主分类号
H04M3/42
代理机构
代理人
主权项
地址
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