Electronic keyboard musical instrument
USD258363S · kind S · design
15Cited by
3References
1Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Oct 29, 1979 |
| Grant date | Feb 24, 1981 |
| Priority date | — |
| Expiry date | Feb 24, 1995 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.