Combined radio receiver and perpetual calendar
USD247240S · kind S · design
2Cited by
5References
1Claims
0Family size
Inventors
Key dates
| Filing date | Jan 23, 1976 |
| Grant date | Feb 14, 1978 |
| Priority date | — |
| Expiry date | Feb 14, 1992 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.