Lottery number selector
USD306881S · kind S · design
1Cited by
13References
1Claims
0Family size
Inventor
Key dates
| Filing date | Jun 30, 1987 |
| Grant date | Mar 27, 1990 |
| Priority date | — |
| Expiry date | Mar 27, 2004 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.