| 312 / | HD | SUPPORTS: CABINET STRUCTURE |
| 21 | DF | DISAPPEARING-INSTRUMENT TYPE {4} |
| 22 | DF | .~ Combined closure and support {1} |
| 23 | ![]() | .~.~ Interconnected closure and support {3} |
| 24 | DF | .~.~.~> On swingable link or linkage |
| 25 | DF | .~.~.~> With trackway |
| 26 | DF | .~.~.~> Pivoted support |