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 85 Electrical machinery and equipment and parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers, and parts and accessories of such articles 85 43 Electrical machines and apparatus, having individual functions, nes 85 43 70 Microwave amplifiers; digital flight-data recorders; portable battery operate 85 43 70 50 Microwave amplifiers; digital flight-data recorders; portable battery operate Commodity Code Description 85 43 70 50 00 Microwave amplifiers; digital flight-data recorders; portable battery operate