发明名称 |
Light display device with travelling balls and compound rotation |
摘要 |
A rigid assembly of hollow tubes is caused to rotate simultaneously about vertical and horizontal axes while illuminated from below by a stationary light source. Balls confined within the tubes travel within said tubes during the rotational motion.
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申请公布号 |
US4364106(A) |
申请公布日期 |
1982.12.14 |
申请号 |
US19810229420 |
申请日期 |
1981.01.29 |
申请人 |
LAM, ANTHONY C. |
发明人 |
LAM, ANTHONY C. |
分类号 |
F21S10/00;(IPC1-7):F21V21/26 |
主分类号 |
F21S10/00 |
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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