| 1441 | Disco Lights | Company Product |
| 1442 | Disc Packs | Company Product |
| 1443 | Disco Light Truss Fabricators | Company Product |
| 1444 | Disc Grinding Machines | Company Product |
| 1445 | Directory Boards & Systems | Company Product |
| 1446 | Dirt Separators | Company Product |
| 1447 | Directional Power Meters | Company Product |
| 1448 | Dirt Filters | Company Product |
| 1449 | Diodes | Company Product |
| 1450 | Direction Finders | Company Product |
| 1451 | Dip Switches | Company Product |
| 1452 | Direct Mail Service | Company Product |
| 1453 | Digital/Analog Signal Transmission System | Company Product |
| 1454 | Dining Set Furniture | Company Product |
| 1455 | Dimmer Switches | Company Product |
| 1456 | Digitizers | Company Product |
| 1457 | Digital Recorders | Company Product |
| 1458 | Digital Readout Systems | Company Product |
| 1459 | Digital Testing Instruments | Company Product |
| 1460 | Digital Indicators | Company Product |
| 1461 | Digital Multimeters | Company Product |
| 1462 | Digital Hydrometers | Company Product |
| 1463 | Digital Plotters | Company Product |
| 1464 | Differential Pressure Sensors | Company Product |
| 1465 | Differential Pressure Gauges | Company Product |
| 1466 | Diethylene Glycol | Company Product |
| 1467 | Dieticians | Company Product |
| 1468 | Diesel Service | Company Product |
| 1469 | Diesel Generating Sets | Company Product |
| 1470 | Diesel Oil | Company Product |