Desk-top electronic calculator
USD289903S · kind S · design
23Cited by
1References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 2, 1984 |
| Grant date | May 19, 1987 |
| Priority date | — |
| Expiry date | May 19, 2001 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.