| 发明名称 |
ORIENTED ACOUSTIC SYSTEM WITH VARIABLE CHARACTERISTIC OF DIRECTIVITY |
| 摘要 |
An oriented acoustic system with variable characteristic of directivity relates to instrument making and may be used in particular for audio tracks reproduction. |
| 申请公布号 |
UA51484(U) |
申请公布日期 |
2010.07.26 |
| 申请号 |
UA20070012758U |
申请日期 |
2007.11.19 |
| 申请人 |
KHARKIV NATIONAL ACADEMY OF MUNICIPAL ECONOMY |
发明人 |
ABRAKITOV VOLODYMYR EDUARDOVYCH;CHUPRINA YANA IVANIVNA |
| 分类号 |
H04R1/20 |
主分类号 |
H04R1/20 |
| 代理机构 |
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代理人 |
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