History of Foghorn
| Element | Description | Element Code | Essential | Uniclass 2015 | Updates |
|---|---|---|---|---|---|
| Foghorn | A device which makes a loud sound to warn vessels of hazards to navigation in fog. | FGH | No | Pr_40_10_90_31 | 27-04-2021 |
| Foghorn | A device which makes a loud sound to warn vessels of hazards to navigation in fog. | FGH | No | Pr_40_10_90_31 | 11-04-2023 |