Modular loudspeaking telephone unit
USD280403S · kind S · design
11Cited by
11References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 2, 1983 |
| Grant date | Sep 3, 1985 |
| Priority date | — |
| Expiry date | Sep 3, 1999 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.