Combined calculator ruler, and desk tray
USD285094S · kind S · design
14Cited by
3References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 16, 1984 |
| Grant date | Aug 12, 1986 |
| Priority date | — |
| Expiry date | Aug 12, 2000 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.