| 248 / | HD | SUPPORTS | 
| 127 | DF | STAND {14} | 
| 155 |  | .~ Convertible to cane {4} | 
| 155.1 | DF | .~.~> Handle becomes support surface | 
| 155.2 | DF | .~.~> Radially hinged support arms {1} | 
| 155.4 | DF | .~.~> Foldable or detachable longitudinal sections | 
| 155.5 | DF | .~.~> Intermediately pivoted sections |