Toy building set provided with elements that can sense bar codes
US5042972A · kind A · utility
29Cited by
3References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 20, 1989 |
| Grant date | Aug 27, 1991 |
| Priority date | — |
| Expiry date | Nov 20, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09B23/22
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A toy building set of the type having elements with projections on one surface for engagement with apertures on a surface of another element is provided with detection elements for receiving light energy reflected from bar code elements. The detection elements and the bar code elements are also provided with at least one of the projections or apertures on a surface thereof to permit those elements to be mechanically coupled to other elements of the building set.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.