Capacitive voltage transformer with improved ferroresonance protection device
UST967008I4 · kind I4 · defensive publication
1Cited by
0References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 7, 1977 |
| Grant date | Feb 7, 1978 |
| Priority date | — |
| Expiry date | Apr 7, 1997 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.