- Acceleration indicators and systems components, aerospace (3)
- Aircraft flight instruments (1)
- Airspeed instrumentation (aeronautical instruments) (1)
- Electronic detection systems (aeronautical) (2)
- Flight recorders (1)
- Horizon flight indicators (1)
- Inertial guidance systems (2)
- Infrared object detection equipment (1)
- Aircraft control instruments (1)
- Aircraft control systems, electronic (1)
- Navigational systems and instruments (8)
- Antennas, radar or communications (2)
- Radar systems and equipment (6)
- Sonar systems and equipment (3)
- Defense systems and equipment (2)
- Missile guidance systems and equipment (1)
- Warfare counter-measure equipment (1)
- Search and detection systems and instruments (4)
- Air traffic control systems and equipment, electronic (1)
- Detection apparatus: electronic/magnetic field, light/heat (3)
