Automated hand-held keratometer
USD345213S · kind S · design
17Cited by
6References
1Claims
0Family size
Inventors
Key dates
| Filing date | Mar 16, 1993 |
| Grant date | Mar 15, 1994 |
| Priority date | — |
| Expiry date | Mar 15, 2008 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.