- Aircraft/aerospace flight instruments and guidance systems (30)
- Acceleration indicators and systems components, aerospace (40)
- Aircraft flight instruments (9)
- Altimeters, standard and sensitive (2)
- Electronic detection systems (aeronautical) (2)
- Gyroscopes (1)
- Inertial guidance systems (7)
- Infrared object detection equipment (10)
- Omnibearing indicators (2)
- Aircraft control instruments (3)
- Aircraft control systems, electronic (12)
- Automatic pilots, aircraft (2)
- Navigational systems and instruments (33)
- Antennas, radar or communications (11)
- Compasses and accessories (3)
- Degaussing equipment (1)
- Radar systems and equipment (29)
- Sonar systems and equipment (24)
- Space vehicle guidance systems and equipment (3)
- Nautical instruments (5)
- Defense systems and equipment (31)
- Missile guidance systems and equipment (2)
- Warfare counter-measure equipment (1)
- Search and detection systems and instruments (20)
- Air traffic control systems and equipment, electronic (3)
- Detection apparatus: electronic/magnetic field, light/heat (21)
- Cabin environment indicators (1)
- Light or heat emission operating apparatus (2)
- Radio magnetic instrumentation (1)
