| 334515 |
Ampere-hour meters manufacturing |
| 334515 |
Analyzers for testing electrical characteristics manufacturing |
| 334515 |
Audiofrequency oscillators manufacturing |
| 334515 |
Audiometers (except medical) manufacturing |
| 334515 |
Automotive ammeters and voltmeters manufacturing |
| 334515 |
Automotive electrical engine diagnostic equipment manufacturing |
| 334515 |
Battery testers, electrical, manufacturing |
| 334515 |
Bridges, electrical (e.g., Kelvin, megohm, vacuum tube, Wheatstone), manufacturing |
| 334515 |
Circuit testers manufacturing |
| 334515 |
Communications signal testing and evaluation equipment manufacturing |