| 271 | Bare Rods | Company Product |
| 272 | Barge Builders & Repairers | Company Product |
| 273 | Barge Cranes | Company Product |
| 274 | Bargraph Indicator | Company Product |
| 275 | Barite | Company Product |
| 276 | Barley Drink | Company Product |
| 277 | Barnacles Removal | Company Product |
| 278 | Barometer | Company Product |
| 279 | Barometers | Company Product |
| 280 | Barrel & Drum Pumps | Company Product |
| 281 | Barrel & Drum Storage Racks | Company Product |
| 282 | Barrel Dryers | Company Product |
| 283 | Barrel Finishing Machines | Company Product |
| 284 | Barrelling | Company Product |
| 285 | Barrels | Company Product |
| 286 | Barricade | Company Product |
| 287 | Barricade Sticks | Company Product |
| 288 | Barrier Gate | Company Product |
| 289 | Barrier Gate System | Company Product |
| 290 | Barrier Materials | Company Product |
| 291 | Barrier Panel | Company Product |
| 292 | Barriers | Company Product |
| 293 | Bars | Company Product |
| 294 | Base | Company Product |
| 295 | Base Coat For Walls | Company Product |
| 296 | Base Coats | Company Product |
| 297 | Base Mounted Valves | Company Product |
| 298 | Base Plates | Company Product |
| 299 | Base Repeaters | Company Product |
| 300 | Base Stations | Company Product |