FR770923A - Device for selecting documents classified vertically - Google Patents

Device for selecting documents classified vertically

Info

Publication number
FR770923A
FR770923A FR770923DA FR770923A FR 770923 A FR770923 A FR 770923A FR 770923D A FR770923D A FR 770923DA FR 770923 A FR770923 A FR 770923A
Authority
FR
France
Prior art keywords
documents classified
selecting documents
classified vertically
selecting
documents
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
French (fr)
Inventor
Roger Daubourg
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 filed Critical
Application granted granted Critical
Publication of FR770923A publication Critical patent/FR770923A/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)
FR770923D 1933-04-26 1934-03-29 Device for selecting documents classified vertically Expired FR770923A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LU770923X 1933-04-26

Publications (1)

Publication Number Publication Date
FR770923A true FR770923A (en) 1934-09-24

Family

ID=19733454

Family Applications (1)

Application Number Title Priority Date Filing Date
FR770923D Expired FR770923A (en) 1933-04-26 1934-03-29 Device for selecting documents classified vertically

Country Status (1)

Country Link
FR (1) FR770923A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2756931A (en) * 1950-10-21 1956-07-31 Jacob H Drillick Card filing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2756931A (en) * 1950-10-21 1956-07-31 Jacob H Drillick Card filing

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