Low back exerciser
USD304964S · kind S · design
0Cited by
6References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 9, 1987 |
| Grant date | Dec 5, 1989 |
| Priority date | — |
| Expiry date | Dec 5, 2003 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.