Section 16 MACHINERY AND MECHANICAL APPLIANCES; ELECTRICAL EQUIPMENT; PARTS THERE OF; SOUND RECORDERS AND REPRODUCERS, TELEVISION IMAGE AND SOUND RECORD ERS AND REPRODUCERS, AND PARTS AND ACCESSORIES OF SUCH ARTICLES 84 Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof 84 70 Calculating machines and pocket-size data recording, reproducing and displaying 84 70 10 84 70 10 00 Commodity Code Description 84 70 10 00 00 - Electronic calculators capable of operation without an external source of electric pow