Safety knife
USD323967S · kind S · design
77Cited by
9References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 27, 1989 |
| Grant date | Feb 18, 1992 |
| Priority date | — |
| Expiry date | Feb 18, 2006 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.