Key telephone set
USD321511S · kind S · design
14Cited by
17References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 9, 1990 |
| Grant date | Nov 12, 1991 |
| Priority date | — |
| Expiry date | Nov 12, 2005 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.