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经营范围
发明名称
ELECTRONIC WATCH
摘要
PURPOSE:To prevent stopping, etc. of a step motor for driving watches before it occurs by detecting an external magnetic field and performing display alarming of it.
申请公布号
JPS52150070(A)
申请公布日期
1977.12.13
申请号
JP19760066750
申请日期
1976.06.08
申请人
SEIKO INSTR & ELECTRONICS
发明人
TORISAWA AKIRA
分类号
G01R33/02;G04C3/00;G04C3/14
主分类号
G01R33/02
代理机构
代理人
主权项
地址
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