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Publication of FR779728ApublicationCriticalpatent/FR779728A/fr
B42F17/00—Card-filing arrangements, e.g. card indexes or catalogues or filing cabinets
B42F17/30—Card-filing arrangements, e.g. card indexes or catalogues or filing cabinets modified for particular uses
FR779728D1934-09-271934-09-27Comptabilité par décalque et matériel approprié dont un fichier apte au classement des fiches en papier de tous formats
ExpiredFR779728A
(fr)