发明名称 PIEZOOOSCILLATOR OF THIN PLATE
摘要 PURPOSE:To simplify the manufacturing steps and to reduce the manufacturing costs by treating the additional weight of a metallic film for adjusting the frequency by laser beam concurrently with the formation of electrode film.
申请公布号 JPS5294094(A) 申请公布日期 1977.08.08
申请号 JP19760010490 申请日期 1976.02.03
申请人 CITIZEN WATCH CO LTD 发明人 KIZAKI SHIGERU
分类号 H03H9/21;H03H3/02;H03H3/04 主分类号 H03H9/21
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