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发明名称
FAULT ALARM TRANSMISSION SYSTEM FOR PRIVATE BRANCH EXCHANGE
摘要
申请公布号
JPH01284093(A)
申请公布日期
1989.11.15
申请号
JP19880114354
申请日期
1988.05.10
申请人
NEC ENG LTD
发明人
GOTO HIROMI
分类号
H04M3/10;H04Q1/26
主分类号
H04M3/10
代理机构
代理人
主权项
地址
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