Explosion proof fluorescent lamp for mines or the like
USD244561S · kind S · design
8Cited by
6References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 26, 1976 |
| Grant date | May 31, 1977 |
| Priority date | — |
| Expiry date | May 31, 1991 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.