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发明名称
CONNECTION STATE DISPLAY SYSTEM
摘要
申请公布号
JPH02308651(A)
申请公布日期
1990.12.21
申请号
JP19890130525
申请日期
1989.05.23
申请人
NEC CORP
发明人
TEZUKA KINGO
分类号
H04M3/42;H04M1/00;H04M3/533
主分类号
H04M3/42
代理机构
代理人
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地址
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