8537.10.90 | 60 | Programmable controllers | No. | | | |
8542.32.00 | 50 | Electrically erasable programmable read-only memory (EEPROM) | No. | | | |
8542.32.00 | 60 | Erasable (except electrically) programmable read-only memory (EPROM) | No. | | | |
9817.00.48 | 00 | Patterns and wall charts; globes; mock-ups or visualizations of abstract concepts such as molecular structures or mathematical formulae; materials for programmed instruction; and kits containing printed materials and audio materials or any combination of two or more of the foregoing | X | Free | | Free |