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发明名称
ELECTRONIC BUZZER
摘要
申请公布号
HK50882(A)
申请公布日期
1982.12.03
申请号
HK19820000508
申请日期
1982.11.25
申请人
DAINI SEIKOSHA KK
发明人
分类号
G10K9/20;G04C21/02;G10K9/13;G10K9/22;H04R1/22;H04R7/08;H04R13/00;(IPC1-7):G10K9/12
主分类号
G10K9/20
代理机构
代理人
主权项
地址
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