EP1803038B1 - Signe de securite pour documents de securite - Google Patents

Signe de securite pour documents de securite Download PDF

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Publication number
EP1803038B1
EP1803038B1 EP05782867A EP05782867A EP1803038B1 EP 1803038 B1 EP1803038 B1 EP 1803038B1 EP 05782867 A EP05782867 A EP 05782867A EP 05782867 A EP05782867 A EP 05782867A EP 1803038 B1 EP1803038 B1 EP 1803038B1
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EP
European Patent Office
Prior art keywords
color
security feature
region
copy
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.)
Active
Application number
EP05782867A
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German (de)
English (en)
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EP1803038A2 (fr
Inventor
Markus Emerich
Franz Loos
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.)
Oesterreichische Banknoten und Sicherheitsdruck GmbH
Original Assignee
Oesterreichische Banknoten und Sicherheitsdruck GmbH
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 Oesterreichische Banknoten und Sicherheitsdruck GmbH filed Critical Oesterreichische Banknoten und Sicherheitsdruck GmbH
Priority to AT05782867T priority Critical patent/ATE423338T1/de
Publication of EP1803038A2 publication Critical patent/EP1803038A2/fr
Application granted granted Critical
Publication of EP1803038B1 publication Critical patent/EP1803038B1/fr
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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
    • B42D25/405—Marking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
    • B41M3/14—Security printing
    • 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
    • B42D25/29—Securities; Bank notes
    • 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
    • B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
    • B42D25/378—Special inks
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/04—Preventing copies being made of an original
    • G03G21/043—Preventing copies being made of an original by using an original which is not reproducible or only reproducible with a different appearence, e.g. originals with a photochromic layer or a colour background
    • B42D2033/20—
    • B42D2035/24—

Definitions

  • the invention relates to a security feature for security documents, in particular banknotes, wherein in a first area a first body color and in a luminous area a printing ink, in particular a daylight color, is applied, the ink outside the copy color space of four-color printing according to the Europa scale or DIN Scale is located.
  • the US Pat. No. 4,066,280 discloses a security document having a first imprint and a second imprint, wherein the second imprint is opaque and can not be copied by a copier.
  • the second imprint can consist of a silver color.
  • the object of the invention is to provide security features of the type described above, in which the known disadvantages are avoided and which have a high security against counterfeiting, in particular with regard to color copying or scanning. Another object of the invention is also to facilitate color blind the detection of counterfeiting.
  • this is achieved in that a first mixed color of the first body color and the printing ink is formed in a first overlapping area, and the first mixed color is located outside the copy parb space or in the edge area of the copying color space.
  • the first area, the first overlap area and the luminous area can be formed distinguishable from each other on the original security feature, but in color copies the ink can not be reproduced faithfully and the first overlap area and the luminous area in the color copy can be formed coincidentally, wherein a differentiation of these areas only at a strong color distortion of the color copy, which also affects the other areas, can be achieved.
  • the fluorescence of the ink represents another security feature, wherein the different luminous intensity of the luminous area and the first overlap area can be used in the illumination with UV light to verify the authenticity of the security feature.
  • the first overlap region is arranged adjacent to the first region and adjacent to the luminous region, whereby the detection of color differences in these regions is facilitated.
  • the maximum of the reflection curve of the first mixed color is greater than the maximum of the reflection curve of the first body colors.
  • the intensity of the reflection curve of the first mixed color at the maximum is greater than 90%, preferably greater than 95%, in particular greater than 100%. At these intensities, it can be ensured that fluorescent properties of the printing ink also occur in the case of the first mixed color.
  • the copy security of the security feature according to the invention can be further increased.
  • the second overlap region is arranged adjacent to the second region and adjacent to the luminous region, whereby color differences in the different regions are particularly easy to detect.
  • the maximum of the reflection curve of the second mixed color is greater than the maximum of the reflection curve of the second body colors.
  • the intensity of the reflection curve of the second mixed color is greater than 90% at the maximum, preferably greater than 95%, in particular greater than 100%. At these intensities, it can be ensured that fluorescent properties of the printing ink also occur in the case of the first mixed color.
  • one of the body colors has a higher proportion of a first base color and a lower proportion of a second base color than the other of the body colors, wherein the proportion of the third base color in the ink is smaller than the proportion of and the first base color, the second base color and the third base color are selected from the set of primary colors red, green and blue.
  • the recognition of the authenticity of the security feature can also be facilitated for colorblinds, for example for red-green-blind persons when using a yellow printing ink.
  • a different formulation for the first overlap region, the luminous region and the second overlap region can be avoided, as a result of which a color copy can easily be detected as a forgery.
  • a variant of the invention may consist in that the first body color is essentially a complementary color of the second body color.
  • complementary colors By using complementary colors, a particularly high level of copying security can be achieved, since a change in the settings of the color copier has different effects on the body colors and an increase in the contrast of the first mixed color with the ink causes a deterioration in the contrast of the second mixed color with the ink.
  • the invention further relates to a security document, in particular a banknote.
  • the object of the invention is to provide a security document of the type described above, in which the known disadvantages are avoided, which has a high anti-counterfeiting protection against color copies.
  • the printing ink and the first mixed color with a color difference delta E of less than 3, preferably less than 2, in particular less than 1, are reproduced, wherein in the default setting the average deviation of colors in the copy color space with the colors on the color copy is as small as possible.
  • the printing ink and the second mixed color with a color distance delta E of less than 3, preferably less than 2, in particular less than 1, reproduced.
  • the formulation of the printing ink and the second mixed color largely coincide, whereby a color copy can easily be detected as a counterfeit due to the lack of contrast.
  • a security feature 8 for security documents 9 is shown.
  • the security document 9 can in particular be a banknote, as in Fig. 6 be shown. In other embodiments, the security document may also be a security, a deed, a contract, or other security document.
  • the security feature 8 has a first body color 51 in a first region 1 and a printing ink 53 in a luminous region 3, the ink 53 being outside the copy color space of the four-color printing according to the Europa scale or DIN scale.
  • the body color 51 may be a base color or a recipe of different colors.
  • the ink 53 may be formed as a recipe of different colors.
  • the copy color space results from the colors used in four-color printing and is specified in terms of the Europe scale in DIN 16538 and DIN 165309 and in terms of the DIN scale in DIN 16508 and DIN 16509.
  • the printing ink 53 may in particular be a daylight color.
  • Fluorescent inks are fluorescent colors that glow intensely in the visible region of the spectrum under ultraviolet radiation. For example, in addition to the visible range, these colors also evaluate the ultraviolet rays of daylight, whereby the daylight colors are among the most brilliant of all colors thanks to this double color effect.
  • the ink 53 may include special effect colors, in particular, interference pigments, liquid-crystalline colors or pearlescent pigments may be provided.
  • the ink 53 may also be a recipe of daylight colors and special effect colors.
  • the color space is understood here to be the CIELab system, and the color difference in the CIELab system is understood by the Delta E color distance evaluation.
  • the copy color space is thus the color space in the CIELab system, which is determined by the colors specified in the European scale or DIN scale for four-color printing.
  • the colors of a color copy are created by subtractive color mixing.
  • a first mixed color 54 of the first body color 51 and the printing ink 53 is formed, wherein the first mixed color 54 is located outside of the copying color space or in the edge area of the copying color space.
  • the overlapping area 13 and the first mixed color can be easily formed by overprinting a part of the first body color 51 with the ink 53.
  • the ink 53 may also be overprinted with the first body color 51 or the first color 54 may be printed directly. It is advantageous if the first overlap region 13 is arranged adjacent to the first region 1 and the luminous region 3, as a result of which color differences of these regions can also be easily determined.
  • Good copy protection can be achieved if the original 53, the ink 53 differs from the first mixed color 54, in a color copy by means of a copier with basic setting the ink 53 and the first mixed color 54 with a Color distance evaluation delta E of less than 3, preferably less than 2, in particular less than 1, reproduced.
  • the basic setting is the standard setting of a color copier, where the average deviation of colors in the copy color space from the colors on the color copy is as small as possible.
  • copiers can usually also be set to the "cold” or “warm” setting, where additional weighting of the colors is carried out during formulation.
  • Fig. 5 the reflection curves are shown in the visible range of the colors of the security feature 8.
  • a substantially similar formulation of the printing ink 53 and the first mixed color 54 can be achieved in a simple manner if the intensity of the first body color 51 in the visible range is substantially below the intensity of the ink 53, with a slight excess in areas of low intensity has shown insignificant.
  • the maximum of the reflection curve of the first mixed color 54 is greater than the maximum of the reflection curve of the first body color 51. Furthermore, it has proven to be favorable if the intensity of the reflection curve of the first mixed color 54 at the maximum is greater than 90%, preferably greater than 95%, in particular greater than 100%. These high intensities can be achieved due to the fluorescent properties of the ink 53.
  • the reliability of the security feature 8 according to the invention can be increased if a second body color 52 is applied in a second area 2 and a second mixed color 55 of the second body color 52 and the ink 53 is formed in a second overlap area 23, the second mixed color outside the copy Color space is located.
  • the second mixed color 55 can be easily produced by overprinting a portion of the second body color 52 with the ink 53. It is advantageous here if the second overlapping region 23 is arranged adjacent to the second region 2 and adjacent to the luminous region 3.
  • the intensity of the second body color 52 in the visible range is substantially below the intensity of the printing ink 53, with a slight exceeding in areas of low intensity having been found to be insignificant.
  • Good copy protection can be achieved if, in a color copy by means of a copier with basic setting, the printing ink 53 and the second mixed ink 55 are reproduced with a color difference delta E of less than 3, preferably less than 2, in particular less than 1.
  • the maximum of the reflection curve of the second mixed color 55 should be greater than the maximum of the reflection curve of the second body color 52. Furthermore, it has proven to be favorable if the intensity of the reflection curve of the second mixed color 55 at the maximum is greater than 90%, preferably greater than 95%, in particular greater than 100%. These high intensities can be achieved in a simple manner, in particular when using a daylight color as printing ink 53, on account of the fluorescent properties.
  • a particularly good copy protection results when the first body color 51 is essentially a complementary color of the second body color 52. As a result, even if the settings of the copier are changed, the security feature can not be reproduced so that the color copy is not immediately recognized as a color copy. If a setting is selected which enhances the contrast between one of the mixed colors 54, 55 and the printing ink 53, the contrast between the printing ink 53 and the other of the mixed colors 54, 55 is reduced in this setting.
  • one of the body colors 51, 52 has a higher proportion of a first base color and a lower proportion of a second base color than the other of the body colors 51, 52
  • the proportion of the third base color is smaller than the proportion of the first base color and the second base color, and wherein the first base color, the second base color and the third base color are selected from the amount of the primary colors red, green and blue.
  • a color copy according to the invention of a security feature according to the invention it can be achieved that the first overlap region 13, the luminous region 3 and optionally the second overlap region 23 appear in the color copy as a unit region 4.
  • a normal-sighted human eye can distinguish the luminous area 3 from the first overlap area 13 and the second overlap area 23 on an original security feature 8. Is this distinction by the Formation of the unit area 4 not possible, the color copy can be easily and quickly recognized as a forgery.
  • Such a color copy is shown schematically in FIG Fig. 2 shown.
  • the weighting of the colors can be changed, whereby the first overlapping area 13 and the second overlapping area 23 can be visualized.
  • Fig. 3 is a color copy in which the cold colors are emphasized and in Fig. 4 a color copy in which the warm colors are emphasized, shown schematically. It has been shown that, given a sufficient distance of the two body colors 51, 52, even when changing the settings of the color copier, it is not possible to copy the first overlapping area 13, the second overlapping area 23 and the luminous area 3 such that these areas are for the human eye are distinguishable on the color copy.
  • Color blind persons too, who can distinguish at least the first overlapping region 13 or the second overlapping region 23 from the luminous region 3, it being sufficient if they are perceived as different shades of gray, can distinguish a color copy from an original security document 9 by means of the security feature according to the invention.
  • Another advantage of the security feature 8 according to the invention is that, when using a daylight fluorescent ink 53, it represents another security feature due to its fluorescent properties.
  • the fluorescence in the luminous area 3, in the first overlapping area 13 and in the second overlapping area 23 is excited to different degrees, so that an additional security feature is formed by the different intensity.

Landscapes

  • Accounting & Taxation (AREA)
  • General Physics & Mathematics (AREA)
  • Finance (AREA)
  • Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Manufacturing & Machinery (AREA)
  • Engineering & Computer Science (AREA)
  • Printing Methods (AREA)
  • Credit Cards Or The Like (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
  • Cleaning In Electrography (AREA)

Claims (11)

  1. Caractéristique de sécurité (8) pour des documents de sécurité (9), en particulier des billets de banque, dans laquelle est appliquée, dans une première zone (1), une première couleur de corps (51) et dans une zone luminescente (3) une encre d'imprimerie (53), en particulier une encre luminescente en lumière du jour, laquelle encre d'imprimerie (53) se situe en dehors de l'espace chromatique de copie de l'impression en quadrichromie selon l'échelle Europa ou l'échelle DIN, caractérisée en ce que dans une première zone de chevauchement (13), une première couleur mélangée (54) est formée à partir de la première couleur de corps (51) et de l'encre d'imprimerie (53), et en ce que la première couleur mélangée (54) se situe en dehors de l'espace chromatique de copie ou à la marge de l'espace chromatique de copie.
  2. Caractéristique de sécurité (8) selon la revendication 1, caractérisée en ce que la première zone de chevauchement (13) est limitrophe de la première zone (1) et limitrophe de la zone luminescente (3).
  3. Caractéristique de sécurité (8) selon la revendication 1 ou 2, caractérisée en ce que le maximum de la courbe de réflexion de la première couleur mélangée (54) est supérieur au maximum de la courbe de réflexion de la première couleur de corps (51).
  4. Caractéristique de sécurité (8) selon l'une des revendications 1 à 3, caractérisée en ce que l'intensité de la courbe de réflexion de la première couleur mélangée (54) au maximum est supérieure à 90 %, de préférence supérieure à 95 %, et en particulier supérieure à 100%.
  5. Caractéristique de sécurité (8) selon l'une des revendications 1 à 4, caractérisée en ce qu'est appliquée dans une deuxième zone (2) une deuxième couleur de corps (52) et en ce que dans une deuxième zone de chevauchement (23), une deuxième couleur mélangée (55) est formée à partir de la deuxième couleur de corps (52) et de l'encre d'imprimerie (53), et en ce que la deuxième couleur mélangée (55) se situe en dehors de l'espace chromatique de copie.
  6. Caractéristique de sécurité (8) selon la revendication 5, caractérisée en ce que la deuxième zone de chevauchement (23) est limitrophe de la deuxième zone (2) et limitrophe de la zone luminescente (3).
  7. Caractéristique de sécurité (8) selon la revendication 5 ou 6, caractérisée en ce que le maximum de la courbe de réflexion de la deuxième couleur mélangée (55) est supérieur au maximum de la courbe de réflexion de la deuxième couleur de corps (52).
  8. Caractéristique de sécurité (8) selon l'une des revendications 5 à 7, caractérisée en ce que l'intensité de la courbe de réflexion de la deuxième couleur mélangée (55) au maximum est supérieure à 90 %, de préférence supérieure à 95 % et en particulier supérieure à 100 %.
  9. Caractéristique de sécurité (8) selon l'une des revendications 5 à 8, caractérisée en ce qu'une des couleurs de corps (51, 52) présente une plus forte proportion d'une première couleur fondamentale et une plus faible proportion d'une deuxième couleur fondamentale que la deuxième des couleurs de corps (51, 52), la proportion de la troisième couleur fondamentale étant plus faible que la proportion de la première couleur fondamentale et de la deuxième couleur fondamentale dans l'encre d'imprimerie (53) et la première couleur fondamentale, la deuxième et la troisième étant choisies parmi le groupe de couleurs fondamentales rouge, vert et bleu.
  10. Caractéristique de sécurité (8) selon l'une des revendications 5 à 9, caractérisée en ce que la première couleur de corps (51) est pour l'essentiel une couleur complémentaire de la deuxième couleur de corps (52).
  11. Document de sécurité (9), en particulier billet de banque, avec une caractéristique de sécurité (8) selon l'une des revendications 1 à 10.
EP05782867A 2004-09-14 2005-09-13 Signe de securite pour documents de securite Active EP1803038B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT05782867T ATE423338T1 (de) 2004-09-14 2005-09-13 Sicherheitsmerkmal für sicherheitsdokumente

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0153704A AT500777B1 (de) 2004-09-14 2004-09-14 Sicherheitsmerkmal
PCT/AT2005/000366 WO2006029431A2 (fr) 2004-09-14 2005-09-13 Signe de securite pour documents de securite

Publications (2)

Publication Number Publication Date
EP1803038A2 EP1803038A2 (fr) 2007-07-04
EP1803038B1 true EP1803038B1 (fr) 2009-02-18

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP05782867A Active EP1803038B1 (fr) 2004-09-14 2005-09-13 Signe de securite pour documents de securite

Country Status (12)

Country Link
US (1) US20080315574A1 (fr)
EP (1) EP1803038B1 (fr)
JP (1) JP5054527B2 (fr)
AT (2) AT500777B1 (fr)
AU (1) AU2005284654B2 (fr)
CA (1) CA2580277C (fr)
DE (1) DE502005006666D1 (fr)
ES (1) ES2324108T3 (fr)
MA (1) MA28925B1 (fr)
RU (1) RU2376148C2 (fr)
WO (1) WO2006029431A2 (fr)
ZA (1) ZA200703045B (fr)

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US8085434B2 (en) * 2008-03-21 2011-12-27 Xerox Corporation Printer characterization for UV encryption applications
JP2010191771A (ja) * 2009-02-19 2010-09-02 Dainippon Printing Co Ltd カラー印刷システム、装置、方法、プログラム、記録媒体
DE102010007566A1 (de) 2010-02-10 2011-08-11 Tailorlux GmbH, 48565 Lumineszentes Sicherheitselement für den Produktschutz
EP2803497A1 (fr) * 2013-05-13 2014-11-19 KBA-NotaSys SA Caractéristique de sécurité imprimée, objet comprenant une telle caractéristique de sécurité imprimée et procédé de production de celui-ci
DE102013113938A1 (de) * 2013-12-12 2015-06-18 Schreiner Group Gmbh & Co. Kg Gegenstand mit mindestens einer ein Sicherheitsmerkmal aufweisenden Oberfläche
JP6464060B2 (ja) 2015-08-31 2019-02-06 株式会社沖データ 画像形成装置
CN111093967A (zh) 2017-10-05 2020-05-01 伟福夫特科技公司 提供双色效应的光学结构
CA3132715A1 (fr) * 2019-04-04 2020-10-08 Wavefront Technology, Inc. Structures optiques fournissant des effets dichroiques

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JPH08300799A (ja) * 1995-04-28 1996-11-19 Dainippon Printing Co Ltd 印刷物
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JP2004188950A (ja) * 2002-12-10 2004-07-08 Tomohiko Harada コピー不可用紙

Also Published As

Publication number Publication date
DE502005006666D1 (de) 2009-04-02
AU2005284654B2 (en) 2010-11-25
CA2580277C (fr) 2013-11-26
US20080315574A1 (en) 2008-12-25
RU2376148C2 (ru) 2009-12-20
JP5054527B2 (ja) 2012-10-24
ZA200703045B (en) 2008-10-29
AT500777A1 (de) 2006-03-15
AU2005284654A1 (en) 2006-03-23
CA2580277A1 (fr) 2006-03-23
RU2007114064A (ru) 2008-10-27
AT500777B1 (de) 2008-09-15
ES2324108T3 (es) 2009-07-30
ATE423338T1 (de) 2009-03-15
JP2008513235A (ja) 2008-05-01
EP1803038A2 (fr) 2007-07-04
MA28925B1 (fr) 2007-10-01
WO2006029431A3 (fr) 2006-07-06
WO2006029431A2 (fr) 2006-03-23

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