Thesaurus Term/Concept: SPEAKING TUBE
| Identifier | 95404 |
|---|---|
| Class | MDA OBJECT TYPE |
| Status | Preferred |
| Index? | Yes |
| Scope Note | A tube for conveying the voice from one room or building to another. |
| Identifier | 95404 |
|---|---|
| Class | MDA OBJECT TYPE |
| Status | Preferred |
| Index? | Yes |
| Scope Note | A tube for conveying the voice from one room or building to another. |