EP2600332B1 - Élément de protection multicouche possédant un effet optique alternant, et document protégé contre les contrefaçons - Google Patents

Élément de protection multicouche possédant un effet optique alternant, et document protégé contre les contrefaçons Download PDF

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Publication number
EP2600332B1
EP2600332B1 EP10855407.2A EP10855407A EP2600332B1 EP 2600332 B1 EP2600332 B1 EP 2600332B1 EP 10855407 A EP10855407 A EP 10855407A EP 2600332 B1 EP2600332 B1 EP 2600332B1
Authority
EP
European Patent Office
Prior art keywords
images
security element
counterfeit
security
viewing angle
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.)
Revoked
Application number
EP10855407.2A
Other languages
German (de)
English (en)
Other versions
EP2600332A4 (fr
EP2600332A1 (fr
Inventor
Arkadiy Vladimirovich Trachuk
Andrey Valerievich Cheglakov
Andrey Borisovich Kuryatnikov
Alexandr Georgievich Pisarev
Mikhail Anatolievich Ostrerov
Yuriy Vasilievich Pavlov
Elena Mikhailovna Fedorova
Elena Samuilovna Turkina
Anatoliy Pavlovich Gubarev
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.)
FEDERALNOE GOSUDARSTVENNOE UNITARNOE PREDPRIYATIE"GOZNAK" (FGUP "GOZNAK")
Goznak FGUP
Original Assignee
FEDERALNOE GOSUDARSTVENNOE UNITARNOE PREDPRIYATIE"GOZNAK" (FGUP "GOZNAK")
Goznak FGUP
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
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Application filed by FEDERALNOE GOSUDARSTVENNOE UNITARNOE PREDPRIYATIE"GOZNAK" (FGUP "GOZNAK"), Goznak FGUP filed Critical FEDERALNOE GOSUDARSTVENNOE UNITARNOE PREDPRIYATIE"GOZNAK" (FGUP "GOZNAK")
Publication of EP2600332A1 publication Critical patent/EP2600332A1/fr
Publication of EP2600332A4 publication Critical patent/EP2600332A4/fr
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Publication of EP2600332B1 publication Critical patent/EP2600332B1/fr
Revoked legal-status Critical Current
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/40—Manufacture
    • B42D25/45—Associating two or more layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/328—Diffraction gratings; Holograms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/355—Security threads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/40—Manufacture
    • B42D25/405—Marking
    • B42D25/425—Marking by deformation, e.g. embossing
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/40—Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/40—Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
    • D21H21/42—Ribbons or strips
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/40—Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
    • D21H21/44—Latent security elements, i.e. detectable or becoming apparent only by use of special verification or tampering devices or methods
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
    • G07D7/003—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using security elements
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
    • G07D7/06—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using wave or particle radiation
    • G07D7/12—Visible light, infrared or ultraviolet radiation
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/02—Forms or constructions
    • G09F3/0291—Labels or tickets undergoing a change under particular conditions, e.g. heat, radiation, passage of time
    • G09F3/0292—Labels or tickets undergoing a change under particular conditions, e.g. heat, radiation, passage of time tamper indicating labels
    • B42D2033/24—
    • B42D2035/50—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
    • B42D25/21—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose for multiple purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/324—Reliefs

Definitions

  • Counterfeit-proof documents may be documents of value, such as cheques, stock certificates, banknotes, excise stamps, special federal stamps and identification documents such as passports, ID cards, etc.
  • a security marking such as watermarks, holograms, diffractive/refractive nanograms, fluorescent signs, security threads, etc.
  • the object of the present invention is to provide security markings capable to create unusual optical effects that become apparent without any special equipment.
  • Conventional security elements are based on microlens raster structures.
  • optical images are formed by superposition of two or more micro-raster structures, one or more of which comprises microlens grids, while the others are raster structures having the same spatial periods as the microlens grids; nodes of the grids comprise repeating micro-images produced by printing methods or precision stamping methods.
  • moiré effects are used.
  • US 2005/0180020 A1, 18.08.2005 discloses a micro-optic system in the form of a polymer film that when viewed by unaided eye(s) in reflective or transmitted light projects one or more images which show various visual effects such as: orthoparallactic movement; appear to lie on a spatial plane deeper than the thickness of the polymer film; appear to lie on a spatial plane above a surface of the polymer film; oscillate between a spatial plane deeper than the thickness of the polymer film and a spatial plane above a surface of the film as the film is azimuthally rotated; transform from one form, shape, size, color (or some combination of these properties) into a different form, shape, size, or color; appear to have realistic three-dimensionality.
  • the films in the security element are highly counterfeit resistant because of their complex multi-layer structure and their high aspect-ratio elements.
  • microlens structures allow stereo-vario effects to be created.
  • Such effects are attained using linear (lenticular) cylinder micro-raster lens structures.
  • printed or embossed images are formed at a distance of about three focal distances from the plane of the lenticular raster and don't represent a grid of micro-images, as in the previous case, but are formed by several uniquely aligned printed or embossed images (normal, non micro-raster grid images).
  • Each image is divided into strips having a width of about a period of the lenticular raster, and the images are aligned (with every other strip in accordance with a predetermined rule of symmetry variation in the strips) to form an integral image.
  • vario or stereo effects can be thereby created, including effects of movement of the viewed images.
  • the systems will show no optical moiré magnification.
  • microlens structures are disposed on the external surface of the security element (they cannot be covered with a protective layer otherwise the required optical effects will be lost). This fact causes, first, rapid and uncontrolled wear (abrasion) of the raster, and, second, possible appearance of transparent layers of liquid, grease, etc. on the raster surface. Therefore, quality of the viewed changing images may be dramatically impaired, or images may disappear at all.
  • WO 2005/106601 A2 pertains to improved optically variable devices.
  • the object of the invention is to enhance the security of products through providing a novel optical effect which renders the counterfeit-proof (protected) product more readily identifiable and is based observation of relative movement of images as the viewing angle varies.
  • the object is further accomplished in a counterfeit-proof document, such as a cheque, stock certificate, banknote, excise stamp, special federal stamp, passport, ID card and another similar product, comprising at least one security element defined above.
  • a counterfeit-proof document such as a cheque, stock certificate, banknote, excise stamp, special federal stamp, passport, ID card and another similar product, comprising at least one security element defined above.
  • the security element is made in the form of a stripe or a local thin-film element placed on the surface of the counterfeit-proof document, or a thin-layer structure covering the counterfeit-proof document, or a security thread embedded into the counterfeit-proof document.
  • the invention substantially resides in the fact that in a security element comprising a flexible carrier layer with optically variable structures containing two or more groups of repeating images that move and/or change as the viewing angle varies, the optically variable structures are formed so that when the viewing angle varies different groups of images, that are located closely to each other at a distance of about the size of visible images, move relative to each other.
  • images belonging to different groups move in parallel to the plane of the viewing angle variation so that the images come nearer or farther relative to the viewer; images belonging to different groups move perpendicular to the plane of the viewing angle variation so that the images move to the right or left of the viewer; images belonging to different groups move in different axial directions with respect to the plane of the viewing angle variation, or the movement of images belonging to different groups is combined with a smooth change in geometric parameters of the images, such as inclination angles to the longitudinal axis of the security element or their linear dimensions.
  • the optically variable structures comprise microlens raster structures, diffractive/refractive structures or holographic structures.
  • a counterfeit-proof document such as a cheque, stock certificate, banknote, excise stamp, special federal stamp, passport, ID card and another similar product, comprises at least one security element defined above.
  • the security element can be made in the form of a stripe, or a local thin-film element disposed on the surface of the counterfeit-proof document (protected) document, or a thin-layer structure covering the protected document, or a security thread embedded into the protected document.
  • a rainbow holographic relief is produced using digital "dot matrix" methods or analog holography methods; when viewed at a certain viewing angle ⁇ 0 the rainbow holographic relief forms an image of two symbols S 1 and S 2 spaced apart at a distance l 0 .
  • the viewing angle ⁇ 0 varies at an angle ⁇ , the viewed image changes so that the distance between the symbols increases by a value ⁇ l
  • the distance between the symbols increases to l 0 +2 ⁇ l
  • the distance between the viewed symbols will increase accordingly by n ⁇ l.
  • symbols S 1 and S 2 will appear to move first away of each other and then towards each other. Therewith movement of the symbols will be easier recognized owing to physiological peculiarities of vision.
  • the symbols may further change their shape, size and orientation (as shown in the second and third lines of symbolic images in FIG. 1 ), which further improves the perception of movement of the symbols.
  • floating images with differently directed movement of their fragments can be formed in diffractive/refractive structures such as a combination of Fresnel lenses aligned with each other or a thin-film nano-prismatic system of diffractive optical elements.
  • floating images are formed by structures produced by embossing with master dies that are manufactured by precision engraving of concentric annular grooves (incisions) having a predetermined profile, which form a system of intersecting Fresnel lenses.
  • the engraving has a resolution (typical size of groove profile) of about 1 - 10 ⁇ m.
  • the structure which forms floating images is manufactured using electronic, ionic, or laser nano- lithographic printers with a resolution of about 10-100 nm.
  • the structure comprises nano-sized hills and pits distributed according to a predetermined law.
  • Floating images with differently directed movement of groups of individual fragments can be also formed in optical elements based on microlens raster structures and micro-image grid systems.
  • the observed movement character of the magnified moiré images is defined by properties and orientation of micro-image and microlens grids.
  • certain local areas of a micro-image raster having dimensions of about 10 - 100 spatial periods are left free of micro-images. When viewed, these areas will appear to float above the plane with moving magnified patterns of micro-images, i.e. an apparent differently directed movement of the local areas relative to remote moving background images will be formed.
  • the present invention makes it possible to simplify the process of detection of counterfeited and forged documents since the security of products can be enhanced owing to the provision of a novel optical effect which renders the protected product more readily identifiable and is based on observation of relative movement of images as the viewing angle varies.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Computer Security & Cryptography (AREA)
  • Theoretical Computer Science (AREA)
  • Credit Cards Or The Like (AREA)
  • Holo Graphy (AREA)

Claims (7)

  1. Elément de sécurité multicouche comprenant une couche de support souple avec des structures optiquement variables contenant deux groupes ou plus d'images répétitives qui se déplacent et/ou changent alors que l'angle d'observation varie, caractérisé en ce que les structures optiquement variables, sous la forme d'une combinaison de lentilles de Fresnel alignées les unes par rapport aux autres, sont formées de sorte que, lorsque l'angle d'observation varie, différents groupes d'images et/ou différents fragments d'un groupe d'images et/ou différents groupes des images se déplacent les uns par rapport aux autres, dans lequel les différents fragments d'un groupe et/ou les différents groupes des images se déplacent dans différentes directions axiales par rapport au plan de variation de l'angle d'observation.
  2. Elément de sécurité multicouche selon la revendication 1, caractérisé en ce que le déplacement d'images appartenant à différents groupes est combiné avec une variation régulière des paramètres géométriques des images, tels que les angles d'inclinaison par rapport à l'axe longitudinal de l'élément de sécurité ou leurs dimensions linéaires.
  3. Elément de sécurité multicouche selon l'une quelconque des revendications 1 à 2, caractérisé en ce que l'élément est réalisé sous la forme d'une bande, ou d'un élément à films minces local, ou d'un fil de sécurité, ou d'une structure de revêtement à couches minces.
  4. Document anti-contrefaçon tel qu'un chèque, un certificat d'action, un billet de banque, une vignette, un timbre fédéral spécial, un passeport, une carte d'identité et un autre article similaire, comprenant au moins un élément de sécurité selon l'une quelconque des revendications 1 à 3.
  5. Document anti-contrefaçon selon la revendication 4, caractérisé en ce que l'élément de sécurité est réalisé sous la forme d'une bande ou d'un élément à films minces local disposé sur la surface d'un document protégé.
  6. Document anti-contrefaçon selon la revendication 4, caractérisé en ce que l'élément de sécurité est réalisé sous la forme d'une structure à couches minces recouvrant un document protégé.
  7. Document anti-contrefaçon selon la revendication 4, caractérisé en ce que l'élément de sécurité est réalisé sous la forme d'un fil de sécurité intégré dans un document protégé.
EP10855407.2A 2010-07-29 2010-12-06 Élément de protection multicouche possédant un effet optique alternant, et document protégé contre les contrefaçons Revoked EP2600332B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2010131795/05A RU2430836C1 (ru) 2010-07-29 2010-07-29 Многослойный защитный элемент с переменным оптическим эффектом и защищенный от подделки документ
PCT/RU2010/000732 WO2012015330A1 (fr) 2010-07-29 2010-12-06 Élément de protection multicouche possédant un effet optique alternant, et document protégé contre les contrefaçons

Publications (3)

Publication Number Publication Date
EP2600332A1 EP2600332A1 (fr) 2013-06-05
EP2600332A4 EP2600332A4 (fr) 2013-08-21
EP2600332B1 true EP2600332B1 (fr) 2015-06-10

Family

ID=44805041

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10855407.2A Revoked EP2600332B1 (fr) 2010-07-29 2010-12-06 Élément de protection multicouche possédant un effet optique alternant, et document protégé contre les contrefaçons

Country Status (4)

Country Link
EP (1) EP2600332B1 (fr)
CN (1) CN103119638B (fr)
RU (1) RU2430836C1 (fr)
WO (1) WO2012015330A1 (fr)

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US9701152B2 (en) * 2012-08-29 2017-07-11 Sicpa Holding Sa Optically variable security threads and stripes
WO2014086715A1 (fr) 2012-12-04 2014-06-12 Sectago Gmbh Dispositif de sécurité
EP2885135B1 (fr) 2013-02-12 2018-01-10 Sectago GmbH Dispositif de sécurité
US10207531B2 (en) 2013-12-02 2019-02-19 SECTAG GmbH Security device
WO2015160276A1 (fr) * 2014-04-18 2015-10-22 Олег Умарович АЙБАЗОВ Carte plastique possédant un effet zonal stéréo/vario
EA030058B1 (ru) * 2017-03-15 2018-06-29 Общество С Ограниченной Ответственностью "Центр Компьютерной Голографии" Микрооптическая система формирования визуальных изображений с кинематическими эффектами движения
DE102017004586A1 (de) 2017-05-12 2018-11-15 Giesecke+Devrient Currency Technology Gmbh Sicherheitselement mit Mikrospiegelanordnung zur Erzeugung eines optisch variablen Effekts und Herstellverfahren für das Sicherheitselement
DE102017004585A1 (de) 2017-05-12 2018-11-15 Giesecke+Devrient Currency Technology Gmbh Sicherheitselement mit Mikroreflektoren
WO2024054132A1 (fr) * 2022-09-09 2024-03-14 Акционерное общество "Гознак" (АО "Гознак") Support d'informations sécurisé à effet optique alternant et procédé de fabrication

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RU2430836C1 (ru) 2011-10-10
EP2600332A4 (fr) 2013-08-21
WO2012015330A1 (fr) 2012-02-02
EP2600332A1 (fr) 2013-06-05
CN103119638A (zh) 2013-05-22

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