 |
| |||
| builder level; engineer level; leveller | |||
| leveling instrument; surveyor's level | |||
| dumpy level (mit festem Fernrohr) | |||
| surveyor’s level | |||
| level; levelling instrument | |||
| aiming level; telescope level | |||
| |||
| levelling instruments | |||
| Nivellierinstrument: 11 do fraz, 3 tematyki |
| Budownictwo | 2 |
| Nauki o życiu | 2 |
| Optyka | 7 |