Hardness tester
USD394015S · kind S · design
14Cited by
4References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 21, 1997 |
| Grant date | May 5, 1998 |
| Priority date | — |
| Expiry date | May 5, 2012 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.