- Aircraft/aerospace flight instruments and guidance systems (3)
- Acceleration indicators and systems components, aerospace (1)
- Airspeed instrumentation (aeronautical instruments) (1)
- Gyroscopes (1)
- Rate-of-climb instrumentation (1)
- Aircraft control instruments (2)
- Aircraft control systems, electronic (1)
- Navigational systems and instruments (3)
- Sonar systems and equipment (1)
- Defense systems and equipment (1)
- Detection apparatus: electronic/magnetic field, light/heat (1)
