| 发明名称 |
PROPAGATION ELEMENT FOR ELASTIC SURFACE WAVE |
| 摘要 |
PURPOSE:To improve performance by sticking more than two kinds of substances absorbing an elastic surface wave to a region which propagates unneeded surface waves. |
| 申请公布号 |
JPS5440543(A) |
申请公布日期 |
1979.03.30 |
| 申请号 |
JP19770106630 |
申请日期 |
1977.09.07 |
| 申请人 |
HITACHI LTD |
发明人 |
MIURA YOSHITSUGU |
| 分类号 |
H03H9/25;H03H3/08;H03H9/02 |
主分类号 |
H03H9/25 |
| 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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