Knife sharpener
USD328410S · kind S · design
48Cited by
7References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 12, 1989 |
| Grant date | Aug 4, 1992 |
| Priority date | — |
| Expiry date | Aug 4, 2006 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.