Disk for matrix display
USD271219S · kind S · design
5Cited by
2References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 11, 1980 |
| Grant date | Nov 1, 1983 |
| Priority date | — |
| Expiry date | Nov 1, 1997 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.