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 72 Other office machines (incl. hectograph... duplicating machines...) Commodity Code Description 84 72 10 Hectograph or stencil duplicating machines 84 72 20 Addressing machines and address plate embossing machines 84 72 30 Machines for dealing with mail 84 72 90 Office machines, nes(incl. coin-sorting/counting/wrapping machines...)