GB1056490A - Improvements in and relating to feature cards - Google Patents

Improvements in and relating to feature cards

Info

Publication number
GB1056490A
GB1056490A GB2516264A GB2516264A GB1056490A GB 1056490 A GB1056490 A GB 1056490A GB 2516264 A GB2516264 A GB 2516264A GB 2516264 A GB2516264 A GB 2516264A GB 1056490 A GB1056490 A GB 1056490A
Authority
GB
United Kingdom
Prior art keywords
feature cards
relating
feature
cards
areas
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
GB2516264A
Inventor
Gerald Graham Baker
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.)
Materials Data Ltd
Original Assignee
Materials Data Ltd
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 Materials Data Ltd filed Critical Materials Data Ltd
Priority to GB2516264A priority Critical patent/GB1056490A/en
Publication of GB1056490A publication Critical patent/GB1056490A/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)
  • Credit Cards Or The Like (AREA)

Abstract

1,056,490. Feature cards. MATERIALS DATA Ltd. July 27, 1965 [June 17, 1964], No. 25162/64. Heading G4M. A master feature card has information recorded thereon in the form of holes or areas the translucency or reflectivity of which is in marked contrast to the background on which these areas lie, whereby duplicate feature cards may be made by a photographic process or by conventional printing methods involving the use of a printing plate.
GB2516264A 1964-06-17 1964-06-17 Improvements in and relating to feature cards Expired GB1056490A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2516264A GB1056490A (en) 1964-06-17 1964-06-17 Improvements in and relating to feature cards

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2516264A GB1056490A (en) 1964-06-17 1964-06-17 Improvements in and relating to feature cards

Publications (1)

Publication Number Publication Date
GB1056490A true GB1056490A (en) 1967-01-25

Family

ID=10223237

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2516264A Expired GB1056490A (en) 1964-06-17 1964-06-17 Improvements in and relating to feature cards

Country Status (1)

Country Link
GB (1) GB1056490A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2456353A1 (en) * 1979-05-08 1980-12-05 Schimmerling Michel Grid type information retrieval system on photographic film - relates references to keywords by marking position on grid on photographic film which may then be optically scanned
GB2140949A (en) * 1983-05-31 1984-12-05 Derek John Wakefield Indexing system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2456353A1 (en) * 1979-05-08 1980-12-05 Schimmerling Michel Grid type information retrieval system on photographic film - relates references to keywords by marking position on grid on photographic film which may then be optically scanned
GB2140949A (en) * 1983-05-31 1984-12-05 Derek John Wakefield Indexing system

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