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Priority to FR859137ApriorityCriticalpatent/FR1298353A/fr
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G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
G06K21/00—Information retrieval from punched cards designed for manual use or handling by machine; Apparatus for handling such cards, e.g. marking or correcting
G06K21/02—Information retrieval from punched cards designed for manual use or handling by machine; Apparatus for handling such cards, e.g. marking or correcting in which coincidence of markings is sensed mechanically, e.g. by needle
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Physics & Mathematics
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Engineering & Computer Science
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Theoretical Computer Science
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FR859137A1961-04-151961-04-15Procédé d'enregistrement et d'exploitation d'informations publiées sur fiches
ExpiredFR1298353A
(fr)