Point-to-point data communication apparatus using commercial phone lines, namely, a dedicated electronic mail apparatus for dial-up connection to other electronic mail apparatus, each having a keyboard and display screen for entering and reading messages

'apparatus':7,17,27 'commerci':9 'communic':6 'connect':22 'data':5 'dedic':14 'dial':20 'dial-up':19 'display':33 'electron':15,25 'enter':36 'keyboard':31 'line':11 'mail':16,26 'messag':39 'name':12 'phone':10 'point':2,4 'point-to-point':1 'read':38 'screen':34 'use':8

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