FR49899E - Perfectionnements aux vérificatrices pour cartes perforées - Google Patents

Perfectionnements aux vérificatrices pour cartes perforées

Info

Publication number
FR49899E
FR49899E FR49899DA FR49899E FR 49899 E FR49899 E FR 49899E FR 49899D A FR49899D A FR 49899DA FR 49899 E FR49899 E FR 49899E
Authority
FR
France
Prior art keywords
punch card
card checkers
checkers
punch
checkers improvements
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
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.)
Compagnie des Machines Bull SA
Original Assignee
Compagnie des Machines Bull SA
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
Application filed by Compagnie des Machines Bull SA filed Critical Compagnie des Machines Bull SA
Application granted granted Critical
Publication of FR49899E publication Critical patent/FR49899E/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
    • G06K5/00—Methods or arrangements for verifying the correctness of markings on a record carrier; Column detection devices

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Common Mechanisms (AREA)
FR49899D 1938-10-26 1938-10-26 Perfectionnements aux vérificatrices pour cartes perforées Expired FR49899E (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR925687X 1938-10-26

Publications (1)

Publication Number Publication Date
FR49899E true FR49899E (fr) 1939-08-22

Family

ID=9440170

Family Applications (1)

Application Number Title Priority Date Filing Date
FR49899D Expired FR49899E (fr) 1938-10-26 1938-10-26 Perfectionnements aux vérificatrices pour cartes perforées

Country Status (2)

Country Link
DE (1) DE925687C (fr)
FR (1) FR49899E (fr)

Also Published As

Publication number Publication date
DE925687C (de) 1955-03-28

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