| 182 / | HD | FIRE ESCAPE, LADDER, OR SCAFFOLD |
| 63.1 | ![]() | HAVING TRANSPOSITIONING BASE AND ERECTING MEANS {4} |
| 64.1 | DF | .~> Ladder pivotably mounted on transpositioning base (e.g., on vehicle) {2} |
| 69.4 | DF | .~> Telescopic erecting means |
| 69.5 | DF | .~> Erecting means actuated by lazy tong |
| 69.6 | DF | .~> And platform elevatable relative to its support |