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经营范围
发明名称
KEY TELEPHONE SYSTEM
摘要
申请公布号
JPH05219244(A)
申请公布日期
1993.08.27
申请号
JP19920020852
申请日期
1992.02.06
申请人
NEC CORP
发明人
HORIKAWA KIYOTAKA
分类号
H04M3/42;H04M3/54
主分类号
H04M3/42
代理机构
代理人
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