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SHEEN 906 SHARP ELSI 1212 HANIMEX NOVUS MATHS CANON F-64 GENUS 78 SHARP EL-8102 HEW PACKARD 12C CASIO ML-81 NOVUS 823 CASIO JL-30 CASIO H-1 HP-35 ELCON TEXAS INST SPELLING HEW PACKARD 71B