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发明名称
SYSTEM FOR SWITCHING VISUAL AND AUDIBLE DISPLAY
摘要
申请公布号
JPH01162059(A)
申请公布日期
1989.06.26
申请号
JP19870320519
申请日期
1987.12.18
申请人
NEC CORP
发明人
HOSHI CHIKARA
分类号
H04M3/42
主分类号
H04M3/42
代理机构
代理人
主权项
地址
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