Low impact stair climbing exercise apparatus
USD314597S · kind S · design
16Cited by
36References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 9, 1989 |
| Grant date | Feb 12, 1991 |
| Priority date | — |
| Expiry date | Feb 12, 2005 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.