41 | Navigation, searching equipment |
42 | Communication equipment |
423 | Data transmission plants, communication |
66 | Other aggr., gen. for main, emergency el. power production |
79 | Automation systems for machinery |
811 | Fire detection, fire and lifeboat alarm systems |
85 | Common electric, electronic systems |
86 | Electric power supply |
87 | Common electric distribution systems |
88 | Electric cable installation |
89 | Electric consumer systems |