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发明名称
TELEPHONE EXCHANGE SYSTEM
摘要
申请公布号
JPH0983646(A)
申请公布日期
1997.03.28
申请号
JP19950232376
申请日期
1995.09.11
申请人
NEC CORP
发明人
YAMAMOTO KAZUTAKA
分类号
H04M3/42;H04M3/02;H04M19/02;(IPC1-7):H04M3/42
主分类号
H04M3/42
代理机构
代理人
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