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经营范围
发明名称
PIEZOOELECRIC VIBRATOR
摘要
PURPOSE:To readily perform frequency adjustment, etc. by providing electrodes which give action as a capacitor to the front and back of the portions not contributing to excitation separately from deriving electrode patterns.
申请公布号
JPS5412287(A)
申请公布日期
1979.01.29
申请号
JP19770077312
申请日期
1977.06.28
申请人
SEIKO INSTR & ELECTRONICS
发明人
KUDOU AKIHITO
分类号
H03H9/21
主分类号
H03H9/21
代理机构
代理人
主权项
地址
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