Telephone answering device-adapter
USD258507S · kind S · design
4Cited by
7References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 31, 1978 |
| Grant date | Mar 10, 1981 |
| Priority date | — |
| Expiry date | Mar 10, 1995 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.