| 220 / | HD | RECEPTACLES |
| 200 | DF | CLOSURES {45} |
| 810 | DD | .~ Pivotable, (e.g., hinged) {13} |
| 820 | | .~.~ About axis at right angle to plane of closure {4} |
| 821 | DD | .~.~.~> Pivotable about centrally located axis |
| 822 | DD | .~.~.~> Plural pivotable closure sections |
| 823 | DD | .~.~.~> Biased |
| 824 | DD | .~.~.~> Including means to limit pivoting movement |