 |
| acoustical alarm: 7 phrases in 5 subjects |
| Firefighting and fire-control systems | 1 |
| Medical appliances | 1 |
| Security systems | 1 |
| Telecommunications | 3 |
| Transport | 1 |
|
| acoustical alarm: 7 phrases in 5 subjects |
| Firefighting and fire-control systems | 1 |
| Medical appliances | 1 |
| Security systems | 1 |
| Telecommunications | 3 |
| Transport | 1 |