发明名称 TUNING FORK TYPE CRYSTAL OSCILLATOR FOR WATCH USE
摘要 PURPOSE:To obtain a tuning fork type crystal oscillator for watch use, which features a high accuracy, except under the special conditions, without deteriorating the time accuracy extremely in case the CR oscillation type frequency standard is applied.
申请公布号 JPS5412692(A) 申请公布日期 1979.01.30
申请号 JP19770077215 申请日期 1977.06.30
申请人 CITIZEN WATCH CO LTD 发明人 WAKASUGI MAKOTO
分类号 H03H9/215;H03H9/10 主分类号 H03H9/215
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