| (subclass Transducer Device) | Mid-level-ontology.kif 1722-1722 | Transducer est une sous-classe de appareil |
| (subclass Engine Transducer) | Mid-level-ontology.kif 1724-1724 | Engine est une sous-classe de Transducer |
| (subclass Transformer Transducer) | engineering.kif 624-624 | Transformer est une sous-classe de Transducer |
| (subclass Gyrator Transducer) | engineering.kif 630-630 | Gyrator est une sous-classe de Transducer |
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