| 541 | Disc | Company Product |
| 542 | Dry Abrasive Papers | Company Product |
| 543 | Dual Action Sander | Company Product |
| 544 | Display Unit Repair Services | Company Product |
| 545 | Display Unit Repairs | Company Product |
| 546 | Denex Micro Repair Services | Company Product |
| 547 | Denex Micro Repairs | Company Product |
| 548 | Dc Drive Repair Services | Company Product |
| 549 | Dc Drive Repairs | Company Product |
| 550 | Drive Repair Services | Company Product |
| 551 | Drive Services | Company Product |
| 552 | Drives Card Repair Services | Company Product |
| 553 | Diamond Coring Machine | Company Product |
| 554 | Dust Filter & Chemical Cartridge | Company Product |
| 555 | Dust Filter Mask | Company Product |
| 556 | Dwarf Coconut | Company Product |
| 557 | Disposal Services | Company Product |
| 558 | Diamond Cut Coconut | Company Product |
| 559 | D & D | Company Product |
| 560 | Dckhhofbofhmbkdsy | Company Product |
| 561 | Dome Grating & Vent Cowl | Company Product |
| 562 | DSM Method | Company Product |
| 563 | Deep Mixing Method | Company Product |
| 564 | Deep Soil Mixing | Company Product |
| 565 | Deep Foundations | Company Product |
| 566 | Dynamic Consolidation | Company Product |
| 567 | Dynamic Compaction | Company Product |
| 568 | Dynamic Replacement | Company Product |
| 569 | Drain Consolidation Method | Company Product |
| 570 | Deformed Bar | Company Product |