Automatic telephone dialer
USD250891S · kind S · design
24Cited by
5References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 26, 1977 |
| Grant date | Jan 23, 1979 |
| Priority date | — |
| Expiry date | Jan 23, 1993 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.