| 391 | INDUSTRIAL MAGNETICS INC | Company Product |
| 392 | INDUSTRIAL NUCLEAR | Company Product |
| 393 | INDUSTRIAL SCIENTIFIC | Company Product |
| 394 | INDUSTRIAL SCIENTIFIC CORP. | Company Product |
| 395 | INDUSTRIAL SCIENTIFIC CORPN | Company Product |
| 396 | INDUSTRIAL SCIENTIFIC OLDHAM | Company Product |
| 397 | INDUSTRIAL TECTONICS | Company Product |
| 398 | INDUSTRIAL TEST SYSTEMS | Company Product |
| 399 | INDUSTRIAS PENALVER | Company Product |
| 400 | INDUSTRIE MECCHANICHE | Company Product |
| 401 | INDUSTRONICS | Company Product |
| 402 | INDUVIL | Company Product |
| 403 | Indxia | Company Product |
| 404 | INECO | Company Product |
| 405 | INELTEC | Company Product |
| 406 | INERGEN | Company Product |
| 407 | INERTIA | Company Product |
| 408 | INESA | Company Product |
| 409 | INET | Company Product |
| 410 | INFA-JET | Company Product |
| 411 | INFAB | Company Product |
| 412 | INFAR | Company Product |
| 413 | INFERNO | Company Product |
| 414 | INFICON | Company Product |
| 415 | INFINEON | Company Product |
| 416 | INFINITE | Company Product |
| 417 | INFINITER | Company Product |
| 418 | INFINITI | Company Product |
| 419 | INFINITY | Company Product |
| 420 | INFLOW | Company Product |