 |
| |||
| certified; d; explosion-proof; safe for use in methane atmospheres; safe in firedamp | |||
| flameproof; permitted | |||
| antigrisouteux: 6 phrases in 4 subjects |
| Coal | 2 |
| Construction | 2 |
| Labor law | 1 |
| Lighting other than cinema | 1 |
|
| |||
| certified; d; explosion-proof; safe for use in methane atmospheres; safe in firedamp | |||
| flameproof; permitted | |||
| antigrisouteux: 6 phrases in 4 subjects |
| Coal | 2 |
| Construction | 2 |
| Labor law | 1 |
| Lighting other than cinema | 1 |