Combined electronic calculator and clock
USD260777S · kind S · design
4Cited by
2References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 8, 1979 |
| Grant date | Sep 15, 1981 |
| Priority date | — |
| Expiry date | Sep 15, 1995 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.