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 70 Calculating machines; accounting machines, cash registers, etc 84 70 10 Electrocin calculators capable of operstion without an external source of electric .... Commodity Code Description 84 70 10 00 Electrocin calculators capable of operstion without an external source of electric ....