| 211 | Magnetic Shielding | Company Product |
| 212 | Magnetic Stands | Company Product |
| 213 | Magnetic Starters | Company Product |
| 214 | Magnetic Switches | Company Product |
| 215 | Magnetic Tape Degaussing Service | Company Product |
| 216 | Magnetic Tape Heads | Company Product |
| 217 | Magnetic Tape Shredding Services | Company Product |
| 218 | Magnetic Valve | Company Product |
| 219 | Magnetic-Driven Metallic Pumps | Company Product |
| 220 | Magnetic-Driven Non-Metallic Pumps | Company Product |
| 221 | Magnetically Coupled Pumps | Company Product |
| 222 | Magnetically Operated Piston Pumps | Company Product |
| 223 | Magnetically Operated Switches | Company Product |
| 224 | Magneto Ball Bearings | Company Product |
| 225 | Magnetometers | Company Product |
| 226 | Magnetometers And Sensors | Company Product |
| 227 | Magnetostrictive | Company Product |
| 228 | Magnetrons | Company Product |
| 229 | Magnets & Magnetic Devices | Company Product |
| 230 | Magnifier Lamp | Company Product |
| 231 | Magnifiers | Company Product |
| 232 | Magspring | Company Product |
| 233 | Mahle | Company Product |
| 234 | Mahogany Flats Pest Control | Company Product |
| 235 | Maid & Butler | Company Product |
| 236 | Maid Agencies | Company Product |
| 237 | Mail Address Service | Company Product |
| 238 | Mail Boxes | Company Product |
| 239 | Mail Dropping Service | Company Product |
| 240 | Mail Order & Catalogue Shopping | Company Product |