Pocket-size photometer
USD258447S · kind S · design
2Cited by
5References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 19, 1978 |
| Grant date | Mar 3, 1981 |
| Priority date | — |
| Expiry date | Mar 3, 1995 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.