| X-ray films (mfg.) |
2290 |
325992 |
| X-ray generators (mfg.) |
3380 |
334517 |
| X-ray inspection service |
7290 |
541380 |
| X-ray laboratory, not mfg. |
8180 |
621512 |
| X-ray lamps (mfg.) |
3380 |
334517 |
| X-ray machines (mfg.) |
3380 |
334517 |
| X-ray machines (whsl.) |
4170 |
423450 |
| X-ray office |
8180 |
621512 |
| X-ray photographic supplies (mfg.) |
2290 |
325992 |
| X-ray physician's office |
7970 |
621111 |
| X-ray plates, photographic (mfg.) |
2290 |
325992 |
| X-ray plates, sensitized (mfg.) |
2290 |
325992 |
| X-ray tubes (mfg.) |
3380 |
334517 |
| X-ray tubes (whsl.) |
4170 |
423450 |
| Xerographic copiers or equipment (mfg.) |
3090 |
333315 |
| Xerographic copiers or equipment (whsl.) |
4170 |
423420 |
| Xerox machines, sales and service (whsl.) |
4170 |
423420 |
| Xylophone parts (mfg.) |
3980 |
339992 |
| Xylophones (mfg.) |
3980 |
339992 |
