| 发明名称 |
TUNING FORK TYPE CRYSTAL RESONATOR |
| 摘要 |
PURPOSE:To make the fork part of the tunign fork being formed strictly symmetrical on the right and left by beforehand making the mask shape of the fork part asymmetrical on the right and left. |
| 申请公布号 |
JPS52137991(A) |
申请公布日期 |
1977.11.17 |
| 申请号 |
JP19760055149 |
申请日期 |
1976.05.14 |
| 申请人 |
SEIKO INSTR & ELECTRONICS |
发明人 |
HOSHI HIDEO |
| 分类号 |
H03H9/215;H03H9/21 |
主分类号 |
H03H9/215 |
| 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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