Computer trackball
USD347628S · kind S · design
23Cited by
3References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 23, 1992 |
| Grant date | Jun 7, 1994 |
| Priority date | — |
| Expiry date | Jun 7, 2008 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.