Optical card reader/writer
USD319634S · kind S · design
3Cited by
10References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 5, 1989 |
| Grant date | Sep 3, 1991 |
| Priority date | — |
| Expiry date | Sep 3, 2005 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.