card reader systems comprised of programmable microprocessor-based time clocks, magnetically encoded card readers and output information display units

'base':9 'card':1,14 'clock':11 'compris':4 'display':19 'encod':13 'inform':18 'magnet':12 'microprocessor':8 'microprocessor-bas':7 'output':17 'programm':6 'reader':2,15 'system':3 'time':10 'unit':20

magnetically encoded time cards, bar coded time cards and time cards encoded for magnetic field proximity sensing; card reader systems comprised of programmable microprocessor-based time clocks, magnetically encoded card readers and output information display units

'bar':5 'base':26 'card':4,8,11,18,31 'clock':28 'code':6 'compris':21 'display':36 'encod':2,12,30 'field':15 'inform':35 'magnet':1,14,29 'microprocessor':25 'microprocessor-bas':24 'output':34 'programm':23 'proxim':16 'reader':19,32 'sens':17 'system':20 'time':3,7,10,27 'unit':37

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