Combined electronic calculator and clock
USD258666S · kind S · design
7Cited by
1References
1Claims
0Family size
Inventors
Key dates
| Filing date | Oct 10, 1978 |
| Grant date | Mar 24, 1981 |
| Priority date | — |
| Expiry date | Mar 24, 1995 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.