| 发明名称 |
CRYSTAL OSCILLATION CLOCK |
| 摘要 |
PURPOSE:To make constant a change in crystal oscillation frequency at the time of the fitting of movement regardless of the material of a dial plate, thus save the trouble of frequency adjustment by locating a metal film or a metal plate etc. near a crystal oscillator. |
| 申请公布号 |
JPS5217866(A) |
申请公布日期 |
1977.02.10 |
| 申请号 |
JP19750094420 |
申请日期 |
1975.07.31 |
| 申请人 |
MATSUSHITA ELECTRIC WORKS LTD |
发明人 |
INASUMI KOUICHI;MATSUMOTO AKIO |
| 分类号 |
G04C3/14;G04C3/00;G04F5/06;G04G3/00;G04G17/08;G12B17/02 |
主分类号 |
G04C3/14 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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