| 511 | Marine Aneroid Barometers | Company Product |
| 512 | Marine Antennas | Company Product |
| 513 | Marine Applications | Company Product |
| 514 | Marine Autopilots | Company Product |
| 515 | Marine Balancing | Company Product |
| 516 | Marine Batteries | Company Product |
| 517 | Marine Battery Chargers | Company Product |
| 518 | Marine Beacons | Company Product |
| 519 | Marine Bearings | Company Product |
| 520 | Marine Blinds | Company Product |
| 521 | Marine Boiler Safety Valves Servicing | Company Product |
| 522 | Marine Boilers | Company Product |
| 523 | Marine Box Cooler | Company Product |
| 524 | Marine Bunkering | Company Product |
| 525 | Marine Buoys | Company Product |
| 526 | Marine Cables | Company Product |
| 527 | Marine Calibrators | Company Product |
| 528 | Marine Carpentry | Company Product |
| 529 | Marine Carpets | Company Product |
| 530 | Marine Ceiling Panels | Company Product |
| 531 | Marine Chemicals | Company Product |
| 532 | Marine Clear View Screens | Company Product |
| 533 | Marine Clearview Screens | Company Product |
| 534 | Marine Clocks | Company Product |
| 535 | Marine Clutches | Company Product |
| 536 | Marine Coatings | Company Product |
| 537 | Marine Commercial Engines | Company Product |
| 538 | Marine Communication & Navigation Equipment | Company Product |
| 539 | Marine Compasses | Company Product |
| 540 | Marine Composite Panel | Company Product |