(subclass Filter Device) | Mid-level-ontology.kif 2519-2519 | |
(subclass AbsoluteFilter Filter) | MilitaryDevices.kif 1363-1363 | |
(subclass FuelFilter Filter) | Cars.kif 917-917 | |
(subclass AirFilter Filter) | Cars.kif 938-938 | |
(subclass CharcoalFilter Filter) | Cars.kif 1689-1689 |