Section 16 Machinery and mechanical appliances; electrical equipment; parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers and parts and accessories of such articles 84 Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof 84 71 Automatic data processing machines...; magnetic readers..., nes 84 71 70 Proprietary format storage devices including media therefor for automatic data proces 84 71 70 50 Proprietary format storage devices including media therefor for automatic data proces Commodity Code Description 84 71 70 50 00 Proprietary format storage devices including media therefor for automatic data proces