Hand held transparency projector
USD264344S · kind S · design
7Cited by
3References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 5, 1979 |
| Grant date | May 11, 1982 |
| Priority date | — |
| Expiry date | May 11, 1996 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.