| 3421 | Cross-cut Saws | Company Product |
| 3422 | Crosscut Saw | Company Product |
| 3423 | Crossed Razor Barbed Wires | Company Product |
| 3424 | Crosshole Sonic Logging | Company Product |
| 3425 | Crosshole Tomography | Company Product |
| 3426 | Crossover Adapters | Company Product |
| 3427 | Crowbar | Company Product |
| 3428 | Crown Corks | Company Product |
| 3429 | Crown Moulding Cornices Corners | Company Product |
| 3430 | Crown Plaster Crown Mouldings | Company Product |
| 3431 | Crown Segment | Company Product |
| 3432 | Crown Staples | Company Product |
| 3433 | Crown Wheel Pinion | Company Product |
| 3434 | Crown Wheel Pinions | Company Product |
| 3435 | Crt Terminal, Computer Monitor Screen Glare Filters | Company Product |
| 3436 | Crucibles | Company Product |
| 3437 | Crude Rubber | Company Product |
| 3438 | Cruise | Company Product |
| 3439 | Cruise Travel Agencies | Company Product |
| 3440 | Crushed Stones | Company Product |
| 3441 | Crushers | Company Product |
| 3442 | Crushing & Pulverizing Equipment | Company Product |
| 3443 | Crushing & Screening Plants | Company Product |
| 3444 | Cryogenic Equipment & Supplies | Company Product |
| 3445 | Cryogenic Tank | Company Product |
| 3446 | Cryogenic Treatment | Company Product |
| 3447 | Cryogenic Valves | Company Product |
| 3448 | Crypto | Company Product |
| 3449 | Crystal | Company Product |
| 3450 | Crystal Filters | Company Product |