Combination time delay switches and cover plate
USD325559S · kind S · design
23Cited by
3References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 1, 1990 |
| Grant date | Apr 21, 1992 |
| Priority date | — |
| Expiry date | Apr 21, 2006 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.