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发明名称
KEY TELEPHONE SYSTEM
摘要
申请公布号
JPH053577(A)
申请公布日期
1993.01.08
申请号
JP19910178761
申请日期
1991.06.24
申请人
NITSUKO CORP
发明人
YANAI TAKAMICHI
分类号
H04Q3/58;H04Q11/04
主分类号
H04Q3/58
代理机构
代理人
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