Educational toy
US4182052A · kind A · utility
2Cited by
6References
10Claims
0Family size
Inventors
Key dates
| Filing date | Jul 19, 1978 |
| Grant date | Jan 8, 1980 |
| Priority date | — |
| Expiry date | Jul 19, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09B3/10
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An educational toy comprises a base provided with a plurality of passages having a V-shaped cross-section, a lid having a plurality of openings corresponding to each said passage, and a series of replaceable question and answer combination cards having one opening at each question and answer illustration section. The quiz results are indicated by the rolling of at least one bead.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.