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发明名称
Envelope control device for piezoelectric buzzer - interrupts voltages applied to sound generator, alternately by push-pull operation
摘要
申请公布号
DE3036845(A1)
申请公布日期
1982.04.22
申请号
DE19803036845
申请日期
1980.09.30
申请人
CASIO COMPUTER CO.,LTD.
发明人
FUJISAWA,HIDETAKA
分类号
B06B1/02;G04G13/02;G10H5/12;(IPC1-7):10H3/00;10H1/057;03B5/36;04C21/12
主分类号
B06B1/02
代理机构
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