Tensioning fixture for a musical drum
USD339818S · kind S · design
10Cited by
5References
1Claims
0Family size
Inventor
Key dates
| Filing date | Mar 29, 1991 |
| Grant date | Sep 28, 1993 |
| Priority date | — |
| Expiry date | Sep 28, 2007 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.