GB1555900A - Security element and secure document - Google Patents

Security element and secure document

Info

Publication number
GB1555900A
GB1555900A GB1508777A GB1508777A GB1555900A GB 1555900 A GB1555900 A GB 1555900A GB 1508777 A GB1508777 A GB 1508777A GB 1508777 A GB1508777 A GB 1508777A GB 1555900 A GB1555900 A GB 1555900A
Authority
GB
United Kingdom
Prior art keywords
security element
secure document
secure
document
security
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
GB1508777A
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.)
EMI Ltd
Original Assignee
EMI 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 EMI Ltd filed Critical EMI Ltd
Priority to GB1508777A priority Critical patent/GB1555900A/en
Publication of GB1555900A publication Critical patent/GB1555900A/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
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/08—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code using markings of different kinds or more than one marking of the same kind in the same record carrier, e.g. one marking being sensed by optical and the other by magnetic means
    • G06K19/10—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code using markings of different kinds or more than one marking of the same kind in the same record carrier, e.g. one marking being sensed by optical and the other by magnetic means at least one kind of marking being used for authentication, e.g. of credit or identity cards
    • G06K19/12—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code using markings of different kinds or more than one marking of the same kind in the same record carrier, e.g. one marking being sensed by optical and the other by magnetic means at least one kind of marking being used for authentication, e.g. of credit or identity cards the marking being sensed by magnetic means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
GB1508777A 1978-04-06 1978-04-06 Security element and secure document Expired GB1555900A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1508777A GB1555900A (en) 1978-04-06 1978-04-06 Security element and secure document

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1508777A GB1555900A (en) 1978-04-06 1978-04-06 Security element and secure document

Publications (1)

Publication Number Publication Date
GB1555900A true GB1555900A (en) 1979-11-14

Family

ID=10052802

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1508777A Expired GB1555900A (en) 1978-04-06 1978-04-06 Security element and secure document

Country Status (1)

Country Link
GB (1) GB1555900A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0146056A2 (en) * 1983-12-02 1985-06-26 Gnt Automatic A/S A magnetic recording member and a method of preparing a magnetic recording member

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0146056A2 (en) * 1983-12-02 1985-06-26 Gnt Automatic A/S A magnetic recording member and a method of preparing a magnetic recording member
EP0146056A3 (en) * 1983-12-02 1988-05-11 Gnt Automatic A/S A magnetic recording member and a method of preparing a magnetic recording member

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Legal Events

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