| 3391 | Crossed Razor Barbed Wires | Company Product |
| 3392 | Crosshole Sonic Logging | Company Product |
| 3393 | Crosshole Tomography | Company Product |
| 3394 | Crossover Adapters | Company Product |
| 3395 | Crowbar | Company Product |
| 3396 | Crown Corks | Company Product |
| 3397 | Crown Moulding Cornices Corners | Company Product |
| 3398 | Crown Plaster Crown Mouldings | Company Product |
| 3399 | Crown Segment | Company Product |
| 3400 | Crown Staples | Company Product |
| 3401 | Crown Wheel Pinion | Company Product |
| 3402 | Crown Wheel Pinions | Company Product |
| 3403 | Crt Terminal, Computer Monitor Screen Glare Filters | Company Product |
| 3404 | Crucibles | Company Product |
| 3405 | Crude Rubber | Company Product |
| 3406 | Cruise | Company Product |
| 3407 | Cruise Travel Agencies | Company Product |
| 3408 | Crushed Stones | Company Product |
| 3409 | Crushers | Company Product |
| 3410 | Crushing & Pulverizing Equipment | Company Product |
| 3411 | Crushing & Screening Plants | Company Product |
| 3412 | Cryogenic Equipment & Supplies | Company Product |
| 3413 | Cryogenic Tank | Company Product |
| 3414 | Cryogenic Treatment | Company Product |
| 3415 | Cryogenic Valves | Company Product |
| 3416 | Crypto | Company Product |
| 3417 | Crystal | Company Product |
| 3418 | Crystal Filters | Company Product |
| 3419 | Crystal Giftwares | Company Product |
| 3420 | Crystal Impedance Meters | Company Product |