Crossover unit for an acoustic system
USD336302S · kind S · design
38Cited by
3References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 3, 1990 |
| Grant date | Jun 8, 1993 |
| Priority date | — |
| Expiry date | Jun 8, 2007 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.