Uninterruptible power supply cell
USD316396S · kind S · design
22Cited by
3References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 13, 1987 |
| Grant date | Apr 23, 1991 |
| Priority date | — |
| Expiry date | Apr 23, 2005 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.