| 661 | Marine Supplies | Company Product |
| 662 | Marine Surveyors | Company Product |
| 663 | Marine Switches | Company Product |
| 664 | Marine Swivels | Company Product |
| 665 | Marine Systems | Company Product |
| 666 | Marine TV Antennas | Company Product |
| 667 | Marine Tackle | Company Product |
| 668 | Marine Toilets | Company Product |
| 669 | Marine Towing | Company Product |
| 670 | Marine Transmission, Parts & Services | Company Product |
| 671 | Marine Travel Agencies | Company Product |
| 672 | Marine Vacuum | Company Product |
| 673 | Marine Vacuum Cleaners | Company Product |
| 674 | Marine Valves | Company Product |
| 675 | Marine Vinyl | Company Product |
| 676 | Marine Wall Panels | Company Product |
| 677 | Marine Warning Lights | Company Product |
| 678 | Marine Water Distillation Equipment | Company Product |
| 679 | Marine Winches | Company Product |
| 680 | Marine Window Wipers | Company Product |
| 681 | Marine Windows | Company Product |
| 682 | Marine Wipers | Company Product |
| 683 | Marine Wires | Company Product |
| 684 | Marine Wood Decking | Company Product |
| 685 | Maritime Cleaning | Company Product |
| 686 | Maritime Communications | Company Product |
| 687 | Maritime Satelite Communications | Company Product |
| 688 | Markers | Company Product |
| 689 | Market Research & Analysis | Company Product |
| 690 | Marketing Agency | Company Product |