- Aircraft/aerospace flight instruments and guidance systems (5)
- Acceleration indicators and systems components, aerospace (2)
- Aircraft flight instruments (3)
- Inertial guidance systems (1)
- Infrared object detection equipment (1)
- Instrument landing systems (ILS), airborne or ground (1)
- Rate-of-climb instrumentation (1)
- Aircraft control instruments (3)
- Aircraft control systems, electronic (3)
- Navigational systems and instruments (2)
- Radar systems and equipment (1)
- Defense systems and equipment (2)
- Detection apparatus: electronic/magnetic field, light/heat (1)
