FR1420714A - Dispositif pour la lecture de cartes perforées - Google Patents

Dispositif pour la lecture de cartes perforées

Info

Publication number
FR1420714A
FR1420714A FR998873A FR998873A FR1420714A FR 1420714 A FR1420714 A FR 1420714A FR 998873 A FR998873 A FR 998873A FR 998873 A FR998873 A FR 998873A FR 1420714 A FR1420714 A FR 1420714A
Authority
FR
France
Prior art keywords
punched cards
reading punched
reading
cards
punched
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
FR998873A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sealectro Corp
Original Assignee
Sealectro Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GB49792/63A external-priority patent/GB1029080A/en
Application filed by Sealectro Corp filed Critical Sealectro Corp
Application granted granted Critical
Publication of FR1420714A publication Critical patent/FR1420714A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/06—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means which conduct current when a mark is sensed or absent, e.g. contact brush for a conductive mark

Landscapes

  • Engineering & Computer Science (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
FR998873A 1963-12-17 1964-12-16 Dispositif pour la lecture de cartes perforées Expired FR1420714A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB49792/63A GB1029080A (en) 1963-12-17 1963-12-17 Improvements in or relating to sensing devices
GB4979264 1964-10-19

Publications (1)

Publication Number Publication Date
FR1420714A true FR1420714A (fr) 1965-12-10

Family

ID=26266549

Family Applications (1)

Application Number Title Priority Date Filing Date
FR998873A Expired FR1420714A (fr) 1963-12-17 1964-12-16 Dispositif pour la lecture de cartes perforées

Country Status (1)

Country Link
FR (1) FR1420714A (fr)

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