| 3211 | Coupling Clutches | Company Product |
| 3212 | Clutch Electric Motors | Company Product |
| 3213 | Clowns For Hire | Company Product |
| 3214 | Clubs | Company Product |
| 3215 | Clothes Hangers | Company Product |
| 3216 | Clothing: Children | Company Product |
| 3217 | Clothing | Company Product |
| 3218 | Clothes Dryers | Company Product |
| 3219 | Clothing Designers | Company Product |
| 3220 | Clothing Interlinings | Company Product |
| 3221 | Cloth Presses | Company Product |
| 3222 | Cloth Towel | Company Product |
| 3223 | Cloth Packings | Company Product |
| 3224 | Cloth Inserted Packings | Company Product |
| 3225 | Cloth Drills | Company Product |
| 3226 | Clocks | Company Product |
| 3227 | Clock Springs | Company Product |
| 3228 | Clinometers | Company Product |
| 3229 | Clearing House | Company Product |
| 3230 | Clipping Bureaus | Company Product |
| 3231 | Cleaning Service | Company Product |
| 3232 | Cleaning Paper Wipers | Company Product |
| 3233 | Cleaning Equipment & Supplies | Company Product |
| 3234 | Cleaning Equipment: Carpet | Company Product |
| 3235 | Clean Room Equipment & Supplies | Company Product |
| 3236 | Clean Room Robots | Company Product |
| 3237 | Clean Room Design & Building | Company Product |
| 3238 | Clean Room Services | Company Product |
| 3239 | Cleaners & Laundries | Company Product |
| 3240 | Clean Room Conveyors | Company Product |