- Aircraft/aerospace flight instruments and guidance systems (3)
- Acceleration indicators and systems components, aerospace (1)
- Aircraft flight instruments (5)
- Electronic detection systems (aeronautical) (1)
- Gyroscopes (1)
- Infrared object detection equipment (3)
- Instrument landing systems (ILS), airborne or ground (1)
- Aircraft control systems, electronic (3)
- Automatic pilots, aircraft (1)
- Navigational systems and instruments (3)
- Antennas, radar or communications (1)
- Control receivers (1)
- Radar systems and equipment (4)
- Sonar systems and equipment (3)
- Space vehicle guidance systems and equipment (1)
- Defense systems and equipment (8)
- Warfare counter-measure equipment (1)
- Search and detection systems and instruments (2)
- Detection apparatus: electronic/magnetic field, light/heat (7)
- Cabin environment indicators (1)
- Radio magnetic instrumentation (1)
