Loud speaker system for emergency vehicles
USD346601S · kind S · design
7Cited by
11References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 16, 1992 |
| Grant date | May 3, 1994 |
| Priority date | — |
| Expiry date | May 3, 2008 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.