 |
| |||
| Gebrauchsnormal in der Telefonometrie; Arbeitsstandard in der Telefonometrie | |||
| wzorzec roboczy: 2 phrases in 2 subjects |
| Electronics | 1 |
| Lighting other than cinema | 1 |
|
| |||
| Gebrauchsnormal in der Telefonometrie; Arbeitsstandard in der Telefonometrie | |||
| wzorzec roboczy: 2 phrases in 2 subjects |
| Electronics | 1 |
| Lighting other than cinema | 1 |