Fluorescent lamp unit for large screen information display
USD334990S · kind S · design
22Cited by
3References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 29, 1991 |
| Grant date | Apr 20, 1993 |
| Priority date | — |
| Expiry date | Apr 20, 2007 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.