| 297 / | HD | CHAIRS AND SEATS |
| 250.1 | DF | SUPPLEMENTAL SEAT (E.G., CHILD SEAT, ETC.) {8} |
| 256.1 | ![]() | .~ Adjustable to plural operative positions {4} |
| 256.11 | DF | .~.~> Vertically |
| 256.12 | DF | .~.~> About a vertical axis; i.e., rotates |
| 256.13 | DF | .~.~> Tiltable |
| 256.14 | DF | .~.~> Reversible |