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SELECTOGRAPH CORP
Original Assignee
SELECTOGRAPH CORP
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Publication date
Application filed by SELECTOGRAPH CORPfiledCriticalSELECTOGRAPH CORP
Application grantedgrantedCritical
Publication of FR702142ApublicationCriticalpatent/FR702142A/fr
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
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
Engineering & Computer Science
(AREA)
Theoretical Computer Science
(AREA)
FR702142D1929-09-041930-08-20Appareil classeur et sélectionneur de fiches, cartes, etc.
ExpiredFR702142A
(fr)