Power transfer block for telephone systems or similar device
USD326266S · kind S · design
1Cited by
9References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 10, 1990 |
| Grant date | May 19, 1992 |
| Priority date | — |
| Expiry date | May 19, 2006 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.