| 451 | Desktop Boom Microphone Arms & Stands | Company Product |
| 452 | Desktop Computers | Company Product |
| 453 | Desktop Duster Boxes | Company Product |
| 454 | Desktop Presses | Company Product |
| 455 | Desktop Publishing | Company Product |
| 456 | Desktop Publishing Computer Software | Company Product |
| 457 | Desktop Publishing Software | Company Product |
| 458 | Desktop Publishing Systems | Company Product |
| 459 | Desktop Spirometer | Company Product |
| 460 | Desludging | Company Product |
| 461 | Desoldering Stations | Company Product |
| 462 | Dessicant | Company Product |
| 463 | Dessicant Dryers | Company Product |
| 464 | Desuperheaters | Company Product |
| 465 | Detecting Devices | Company Product |
| 466 | Detection Drumstick | Company Product |
| 467 | Detection Switch | Company Product |
| 468 | Detections | Company Product |
| 469 | Detective Agencies | Company Product |
| 470 | Detector | Company Product |
| 471 | Detector Tubes | Company Product |
| 472 | Detectors | Company Product |
| 473 | Detent | Company Product |
| 474 | Detergent Chemicals | Company Product |
| 475 | Detergent Optical Brighteners | Company Product |
| 476 | Detergents | Company Product |
| 477 | Detox | Company Product |
| 478 | Detroit Diesel 12V71 Diesel Engine | Company Product |
| 479 | Detroit Diesel 16v92ta Diesel Engine | Company Product |
| 480 | Detroit Diesel 3-53 Diesel Engine | Company Product |