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发明名称
KEY TELEPHONE SYSTEM
摘要
申请公布号
JPS52136509(A)
申请公布日期
1977.11.15
申请号
JP19760053434
申请日期
1976.05.11
申请人
MEISEI ELECTRIC CO LTD
发明人
NARITA KUNITOSHI;OOHASHI HIDEO;SUGAI KAZUHIKO
分类号
H04Q3/58;H04M1/72;H04Q3/62
主分类号
H04Q3/58
代理机构
代理人
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