| 1501 | Microprocessor-Based Converters | Company Product |
| 1502 | Microprocessors | Company Product |
| 1503 | Microregulator For Batteries | Company Product |
| 1504 | Microregulators | Company Product |
| 1505 | Microscope Accessories | Company Product |
| 1506 | Microscope Slides | Company Product |
| 1507 | Microscopes | Company Product |
| 1508 | Microstep Drivers | Company Product |
| 1509 | Microtomes | Company Product |
| 1510 | Microwave | Company Product |
| 1511 | Microwave Blocked | Company Product |
| 1512 | Microwave Components | Company Product |
| 1513 | Microwave Counters | Company Product |
| 1514 | Microwave Electronic Generators | Company Product |
| 1515 | Microwave Generators | Company Product |
| 1516 | Microwave Instruments | Company Product |
| 1517 | Microwave Leakage Detector | Company Product |
| 1518 | Microwave Level Switch | Company Product |
| 1519 | Microwave Meter | Company Product |
| 1520 | Microwave Solids | Company Product |
| 1521 | Mid Pipe | Company Product |
| 1522 | Mid Range (25hp - 140hp) | Company Product |
| 1523 | Mid Range (25hp To 140hp) | Company Product |
| 1524 | Mid Steel Joints | Company Product |
| 1525 | Mid-Level Temperature Controllers | Company Product |
| 1526 | Mid-Rise Car Lifts | Company Product |
| 1527 | Midi Controllers | Company Product |
| 1528 | Midi Drives | Company Product |
| 1529 | Midi Panty | Company Product |
| 1530 | Midpipe | Company Product |