| 3421 | Cryogenic Equipment & Supplies | Company Product |
| 3422 | Cryogenic Tank | Company Product |
| 3423 | Cryogenic Treatment | Company Product |
| 3424 | Cryogenic Valves | Company Product |
| 3425 | Crypto | Company Product |
| 3426 | Crystal | Company Product |
| 3427 | Crystal Filters | Company Product |
| 3428 | Crystal Giftwares | Company Product |
| 3429 | Crystal Impedance Meters | Company Product |
| 3430 | Crystal Level | Company Product |
| 3431 | Crystal Oscillators | Company Product |
| 3432 | Crystal Retailers | Company Product |
| 3433 | Crystallizer Tanks | Company Product |
| 3434 | Crystallizers | Company Product |
| 3435 | Crystalwares | Company Product |
| 3436 | Csl | Company Product |
| 3437 | Ct | Company Product |
| 3438 | Ct With Built-In Transducers | Company Product |
| 3439 | Ct Woods | Company Product |
| 3440 | Ctr Suspension Parts | Company Product |
| 3441 | Cube Moulds | Company Product |
| 3442 | Cubic Boron Nitride Tools | Company Product |
| 3443 | Cultery | Company Product |
| 3444 | Cultural Organisations | Company Product |
| 3445 | Culture Stone | Company Product |
| 3446 | Cultured Milk Drinks Manufacturers | Company Product |
| 3447 | Cummins | Company Product |
| 3448 | Cup Brushes | Company Product |
| 3449 | Cup & Line Ball Bearings | Company Product |
| 3450 | Cup, Pump Packings | Company Product |