| 1681 | Temperature Recorders | Company Product |
| 1682 | Temperature Probes | Company Product |
| 1683 | Temperature Regulators | Company Product |
| 1684 | Temperature Measuring Instruments | Company Product |
| 1685 | Temperature Controls | Company Product |
| 1686 | Temperature Indicators | Company Product |
| 1687 | Temperature Gauges | Company Product |
| 1688 | Temperature Detectors | Company Product |
| 1689 | Temperature Loggers | Company Product |
| 1690 | Temperature Indicating Paints | Company Product |
| 1691 | Temperature Chambers | Company Product |
| 1692 | Temperature Controllers | Company Product |
| 1693 | Temperature Calibrators | Company Product |
| 1694 | Telex Paper Tapes | Company Product |
| 1695 | Telex Printer Paper Rolls | Company Product |
| 1696 | Telex Communication Equipment | Company Product |
| 1697 | Television Services | Company Product |
| 1698 | Television Repair | Company Product |
| 1699 | Television Transmitters | Company Product |
| 1700 | Television Rental | Company Product |
| 1701 | Television Stations & Broadcasting Companies | Company Product |
| 1702 | Television Glass Panels | Company Product |
| 1703 | Television Picture Tubes | Company Product |
| 1704 | Television Receivers | Company Product |
| 1705 | Television Component Pattern Generators | Company Product |
| 1706 | Television Antennas | Company Product |
| 1707 | Telescopes | Company Product |
| 1708 | Telescopic Masts | Company Product |
| 1709 | Television Coils | Company Product |
| 1710 | Teleprinter Paper Rolls | Company Product |