| X-ray films (mfg.) |
229 |
325992 |
| X-ray generators (mfg.) |
338 |
334517 |
| X-ray inspection service |
729 |
541380 |
| X-ray laboratory, not mfg. |
818 |
621512 |
| X-ray lamps (mfg.) |
338 |
334517 |
| X-ray machines (mfg.) |
338 |
334517 |
| X-ray machines (whsl.) |
417 |
421450 |
| X-ray office |
818 |
621512 |
| X-ray photographic supplies (mfg.) |
229 |
325992 |
| X-ray physician's office |
797 |
621111 |
| X-ray plates, photographic (mfg.) |
229 |
325992 |
| X-ray plates, sensitized (mfg.) |
229 |
325992 |
| X-ray tubes (mfg.) |
338 |
334517 |
| X-ray tubes (whsl.) |
417 |
421450 |
| Xerographic copiers or equipment (mfg.) |
309 |
333315 |
| Xerographic copiers or equipment (whsl.) |
417 |
421420 |
| Xerox machines, sales and service (whsl.) |
417 |
421420 |
| Xylophone parts (mfg.) |
398 |
339992 |
| Xylophones (mfg.) |
398 |
339992 |
