Thesaurus Term/Concept: TRAPDOOR
| Identifier | 139792 |
|---|---|
| Class | COMPONENTS |
| Status | Preferred |
| Index? | Yes |
| Scope Note | A horizontal door within, and usually flush with surface of, a floor, ceiling or roof. |
| Identifier | 139792 |
|---|---|
| Class | COMPONENTS |
| Status | Preferred |
| Index? | Yes |
| Scope Note | A horizontal door within, and usually flush with surface of, a floor, ceiling or roof. |