Optical construction toy
US5030158A · kind A · utility
14Cited by
5References
10Claims
0Family size
Inventors
Key dates
| Filing date | Feb 6, 1990 |
| Grant date | Jul 9, 1991 |
| Priority date | — |
| Expiry date | Feb 6, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63H33/042
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
An optical construction toy assembly including modular optical apparatus having optical power and construction apparatus for permitting selectable arrangement of the modular optical apparatus having optical power to selectably define a plurality of different optical devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.