Telephone acoustic coupler base
USD279184S · kind S · design
27Cited by
11References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 30, 1982 |
| Grant date | Jun 11, 1985 |
| Priority date | — |
| Expiry date | Jun 11, 1999 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.