Ruler
USD332412S · kind S · design
4Cited by
6References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 3, 1991 |
| Grant date | Jan 12, 1993 |
| Priority date | — |
| Expiry date | Jan 12, 2007 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.