Terms containing building materials , non-metallic rigid pipes for building, asphalt , pitch and bitumen, non | all forms
| Subject | English | French |
| patents. | building materials non metallic, non-metallic rigid pipes for building, asphalt, pitch and bitumen, non-metallic transportable buildings, monuments, not of metal | matériaux de construction non métalliques, tuyaux rigides non métalliques pour la construction, asphalte, poix et bitume, constructions transportables non métalliques, monuments non métalliques |
