Educational electronic book
USD354769S · kind S · design
15Cited by
10References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 15, 1993 |
| Grant date | Jan 24, 1995 |
| Priority date | — |
| Expiry date | Jan 24, 2009 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.