Teleconferencing microphone
USD283891S · kind S · design
38Cited by
8References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 8, 1983 |
| Grant date | May 20, 1986 |
| Priority date | — |
| Expiry date | May 20, 2000 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.