| 334510 |
Ultrasonic scanning devices, medical, manufacturing |
| 334510 |
Ventilators, electromedical, manufacturing |
| 334511 |
Acceleration indicators and systems components, aerospace type, manufacturing |
| 334511 |
Aeronautical systems and instruments manufacturing |
| 334511 |
Aeronautical systems and instruments overhauling, conversion, or rebuilding |
| 334511 |
Air traffic control radar systems and equipment manufacturing |
| 334511 |
Airborne navigational systems manufacturing |
| 334511 |
Aircraft flight instruments (except engine instruments) manufacturing |
| 334511 |
Airframe equipment instruments manufacturing |
| 334511 |
Airspeed instruments (aeronautical) manufacturing |