FR935616A - Improvement to cards for vertical files with dividers with constant parallelism - Google Patents

Improvement to cards for vertical files with dividers with constant parallelism

Info

Publication number
FR935616A
FR935616A FR935616DA FR935616A FR 935616 A FR935616 A FR 935616A FR 935616D A FR935616D A FR 935616DA FR 935616 A FR935616 A FR 935616A
Authority
FR
France
Prior art keywords
dividers
cards
improvement
vertical files
constant parallelism
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
Luigi Lombardini
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 FR935616A publication Critical patent/FR935616A/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)
FR935616D 1946-01-08 1946-11-06 Improvement to cards for vertical files with dividers with constant parallelism Expired FR935616A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT935616X 1946-01-08

Publications (1)

Publication Number Publication Date
FR935616A true FR935616A (en) 1948-06-24

Family

ID=11332011

Family Applications (1)

Application Number Title Priority Date Filing Date
FR935616D Expired FR935616A (en) 1946-01-08 1946-11-06 Improvement to cards for vertical files with dividers with constant parallelism

Country Status (1)

Country Link
FR (1) FR935616A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3283761A (en) * 1963-11-29 1966-11-08 Ibm Card storage and selection device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3283761A (en) * 1963-11-29 1966-11-08 Ibm Card storage and selection device

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