#typewriter  hand-operated character printer for printing written messages one character at a time
  supertype:  #character_printer__characterprinter__character-at-a-time_printer__serial_printer  a printer that prints a single character at a time
  part:  #carriage  #keyboard  #typewriter_ribbon  #typewriter_carriage  #typewriter_keyboard
  subtype:  #electric_typewriter  a typewriter powered by an electric motor
  subtype:  #portable  a small light typewriter; usually with a case in which it can be carried

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