Desk top telephone set
USD307904S · kind S · design
3Cited by
26References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 23, 1988 |
| Grant date | May 15, 1990 |
| Priority date | — |
| Expiry date | May 15, 2004 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.