| 52 / | HD | STATIC STRUCTURES (E.G., BUILDINGS) |
| 234 | DF | MULTIROOM OR LEVEL {4} |
| 238.1 | DF | .~ Partition secured to and crossed by preconstructed barrier {5} |
| 243.1 | ![]() | .~.~ Movable element on partition engages overhead barrier; i.e., ceiling, to secure partition in place |