GB1440128A - Data accumulation system - Google Patents

Data accumulation system

Info

Publication number
GB1440128A
GB1440128A GB4030773A GB4030773A GB1440128A GB 1440128 A GB1440128 A GB 1440128A GB 4030773 A GB4030773 A GB 4030773A GB 4030773 A GB4030773 A GB 4030773A GB 1440128 A GB1440128 A GB 1440128A
Authority
GB
United Kingdom
Prior art keywords
magnetic
aug
permanent magnet
tape
credit card
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
GB4030773A
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.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing Co
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
Priority claimed from US05/283,941 external-priority patent/US3995313A/en
Application filed by Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Publication of GB1440128A publication Critical patent/GB1440128A/en
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
    • G06K1/00—Methods or arrangements for marking the record carrier in digital fashion
    • G06K1/12—Methods or arrangements for marking the record carrier in digital fashion otherwise than by punching
    • G06K1/125—Methods or arrangements for marking the record carrier in digital fashion otherwise than by punching by magnetic means
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K1/00—Methods or arrangements for marking the record carrier in digital fashion
    • G06K1/02—Methods or arrangements for marking the record carrier in digital fashion by punching
    • G06K1/04—Methods or arrangements for marking the record carrier in digital fashion by punching controlled by sensing markings on the record carrier being punched

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Digital Magnetic Recording (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
  • Credit Cards Or The Like (AREA)
  • Magnetic Record Carriers (AREA)
GB4030773A 1972-08-28 1973-08-24 Data accumulation system Expired GB1440128A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/283,941 US3995313A (en) 1972-08-28 1972-08-28 Data accumulation system

Publications (1)

Publication Number Publication Date
GB1440128A true GB1440128A (en) 1976-06-23

Family

ID=23088233

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4030773A Expired GB1440128A (en) 1972-08-28 1973-08-24 Data accumulation system

Country Status (6)

Country Link
JP (1) JPS4960639A (enrdf_load_stackoverflow)
CA (1) CA1022673A (enrdf_load_stackoverflow)
DE (1) DE2343614A1 (enrdf_load_stackoverflow)
FR (1) FR2198666A5 (enrdf_load_stackoverflow)
GB (1) GB1440128A (enrdf_load_stackoverflow)
IT (1) IT994167B (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2752895A1 (de) * 1976-12-06 1978-06-08 Emi Ltd Verfahren zur herstellung einer materialschicht, deren oberflaeche ein abtastbares muster aufweist, sowie sicherheitsdokumentensystem
JPS5925431A (ja) * 1982-03-29 1984-02-09 Yaesu Musen Co Ltd Ｃｗ受信装置

Also Published As

Publication number Publication date
DE2343614A1 (de) 1974-03-28
FR2198666A5 (enrdf_load_stackoverflow) 1974-03-29
JPS4960639A (enrdf_load_stackoverflow) 1974-06-12
CA1022673A (en) 1977-12-13
IT994167B (it) 1975-10-20

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee