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发明名称
ELECTRONIC WRISTWATCH WITH BUZZER
摘要
PURPOSE:To constitute a buzzer and promote simplification and water-proofing performance improvement by fixing the piezo-electric element to the thin layer section formed on the back cover of the watchcase.
申请公布号
JPS5313956(A)
申请公布日期
1978.02.08
申请号
JP19760087910
申请日期
1976.07.23
申请人
CITIZEN WATCH CO LTD
发明人
ICHIKAWA SHINGO
分类号
G04C21/02;G04G13/02
主分类号
G04C21/02
代理机构
代理人
主权项
地址
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