Telephone subscriber's instrument
USD258283S · kind S · design
22Cited by
5References
1Claims
0Family size
Inventor
Key dates
| Filing date | May 24, 1978 |
| Grant date | Feb 17, 1981 |
| Priority date | — |
| Expiry date | Feb 17, 1995 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.