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发明名称
KEY INPUT CONFIRMATION SOUND GENERATING DEVICE FOR TELEPHONE SET
摘要
申请公布号
JPH0290759(A)
申请公布日期
1990.03.30
申请号
JP19880242758
申请日期
1988.09.27
申请人
NEC CORP
发明人
SEKI TOSHINORI
分类号
H04M1/26
主分类号
H04M1/26
代理机构
代理人
主权项
地址
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