History of Cover or Hatch
| Element | Description | Element Code | Essential | Uniclass 2015 | Updates |
|---|---|---|---|---|---|
| Cover or Hatch | Means to allow or prevent access to a structure. Doors to buildings are covered separately. | CDR | No | Pr_30_59_36 | 27-04-2021 |
| Cover or Hatch | Means to allow or prevent access to a structure. Doors to buildings are covered separately. | CDR | No | Pr_30_59_36 | 11-04-2023 |