Desk-top electronic calculator
USD289416S · kind S · design
6Cited by
3References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 24, 1985 |
| Grant date | Apr 21, 1987 |
| Priority date | — |
| Expiry date | Apr 21, 2001 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.