A time clock and/or computer system has a central management office with readout communication to factory work stations. Work instructions to the work stations are displayed for the foreman who prints or punches a working order. The order together with worker ID are fed to a time clock at the station...http://www.google.es/patents/US4409657?utm_source=gb-gplus-sharePatente US4409657 - Time clock for recording the identification of a person
Time clock for recording the identification of a person