| 发明名称 |
Spiral for creating an optical illusion comprises a central part with a ball suspended on a cord, and an aerodynamic device attached to the suspension cord |
| 摘要 |
<p>Spiral (6) comprises a central part with a ball (7) suspended on a cord (3) which when rotated gives the appearance that the ball moves upward and downward. An aerodynamic device (1) is attached to the suspension cord. Preferred Features: The aerodynamic device has at least one, preferably three or more blades (hemispheres (5)) and a height-adjustable slide.</p> |
| 申请公布号 |
DE202004013453(U1) |
申请公布日期 |
2004.10.14 |
| 申请号 |
DE20042013453U |
申请日期 |
2004.08.20 |
| 申请人 |
VISZT, MATYAS |
发明人 |
|
| 分类号 |
G09B19/00;(IPC1-7):A63H33/40 |
主分类号 |
G09B19/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
