| 541 | Valve Position Monitors | Company Product |
| 542 | Valve Repair | Company Product |
| 543 | Valve Packings | Company Product |
| 544 | Valve Sealants | Company Product |
| 545 | Valve Monitoring Switches | Company Product |
| 546 | Valve Seat Refacing Equipment | Company Product |
| 547 | Valve Actuators | Company Product |
| 548 | Vacuum Recovery Systems | Company Product |
| 549 | Valve Lubricants | Company Product |
| 550 | Vacuum Pouches Packaging Materials | Company Product |
| 551 | Valuation Surveyors | Company Product |
| 552 | Valve Locks | Company Product |
| 553 | Vacuum Gauges | Company Product |
| 554 | Vacuum Pick Ups | Company Product |
| 555 | Vacuum Packaging Machines | Company Product |
| 556 | Vacuum Pouches | Company Product |
| 557 | Vacuum Packings | Company Product |
| 558 | Vacuum Formed Products | Company Product |
| 559 | Vacuum Plating | Company Product |
| 560 | Vacuum Equipment & Systems | Company Product |
| 561 | Vacuum Cups | Company Product |
| 562 | Vacuum Cleaners Repairing | Company Product |
| 563 | Vacuum Formed Plastic Packaging Materials | Company Product |
| 564 | VHF Generators | Company Product |
| 565 | V Belting | Company Product |
| 566 | Vacuum Cleaners | Company Product |
| 567 | Vacuum Blasting Machines | Company Product |
| 568 | Vacation Time Sharing | Company Product |
| 569 | Voltage Transformers | Company Product |
| 570 | Variable Transformers | Company Product |