FR1523746A - Improvements to punch card scanning devices - Google Patents

Improvements to punch card scanning devices

Info

Publication number
FR1523746A
FR1523746A FR107088A FR107088A FR1523746A FR 1523746 A FR1523746 A FR 1523746A FR 107088 A FR107088 A FR 107088A FR 107088 A FR107088 A FR 107088A FR 1523746 A FR1523746 A FR 1523746A
Authority
FR
France
Prior art keywords
scanning devices
punch card
card scanning
punch
devices
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
FR107088A
Other languages
French (fr)
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 Ltd
Sealectro Corp
Original Assignee
Sealectro Ltd
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
Application filed by Sealectro Ltd, Sealectro Corp filed Critical Sealectro Ltd
Priority to FR107088A priority Critical patent/FR1523746A/en
Application granted granted Critical
Publication of FR1523746A publication Critical patent/FR1523746A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • 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
    • G06K21/04—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 optically, e.g. peek-a-boo system

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
FR107088A 1967-05-19 1967-05-19 Improvements to punch card scanning devices Expired FR1523746A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR107088A FR1523746A (en) 1967-05-19 1967-05-19 Improvements to punch card scanning devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR107088A FR1523746A (en) 1967-05-19 1967-05-19 Improvements to punch card scanning devices

Publications (1)

Publication Number Publication Date
FR1523746A true FR1523746A (en) 1968-05-03

Family

ID=8631199

Family Applications (1)

Application Number Title Priority Date Filing Date
FR107088A Expired FR1523746A (en) 1967-05-19 1967-05-19 Improvements to punch card scanning devices

Country Status (1)

Country Link
FR (1) FR1523746A (en)

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