- Acceleration indicators and systems components, aerospace (1)
- Aircraft flight instruments (1)
- Gyro gimbals (1)
- Infrared object detection equipment (1)
- Aircraft control instruments (1)
- Aircraft control systems, electronic (1)
- Automatic pilots, aircraft (1)
- Navigational systems and instruments (2)
- Compasses and accessories (1)
- Sonar systems and equipment (3)
- Defense systems and equipment (2)
- Detection apparatus: electronic/magnetic field, light/heat (1)
- Magnetic field detection apparatus (1)
