| 3391 | Crown Wheel Pinions | Company Product |
| 3392 | Crt Terminal, Computer Monitor Screen Glare Filters | Company Product |
| 3393 | Crucibles | Company Product |
| 3394 | Crude Rubber | Company Product |
| 3395 | Cruise | Company Product |
| 3396 | Cruise Travel Agencies | Company Product |
| 3397 | Crushed Stones | Company Product |
| 3398 | Crushers | Company Product |
| 3399 | Crushing & Pulverizing Equipment | Company Product |
| 3400 | Crushing & Screening Plants | Company Product |
| 3401 | Cryogenic Equipment & Supplies | Company Product |
| 3402 | Cryogenic Tank | Company Product |
| 3403 | Cryogenic Treatment | Company Product |
| 3404 | Cryogenic Valves | Company Product |
| 3405 | Crypto | Company Product |
| 3406 | Crystal | Company Product |
| 3407 | Crystal Filters | Company Product |
| 3408 | Crystal Giftwares | Company Product |
| 3409 | Crystal Impedance Meters | Company Product |
| 3410 | Crystal Level | Company Product |
| 3411 | Crystal Oscillators | Company Product |
| 3412 | Crystal Retailers | Company Product |
| 3413 | Crystallizer Tanks | Company Product |
| 3414 | Crystallizers | Company Product |
| 3415 | Crystalwares | Company Product |
| 3416 | Csl | Company Product |
| 3417 | Ct | Company Product |
| 3418 | Ct With Built-In Transducers | Company Product |
| 3419 | Ct Woods | Company Product |
| 3420 | Ctr Suspension Parts | Company Product |