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Christoph Gerz
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Germering, DE
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Patents Grants
last 30 patents
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Patent Grant
Methods and devices for testing the color fastness of imprinted obj...
Patent number
6,937,322
Issue date
Aug 30, 2005
Giesecke & Devrient GmbH
Christoph Gerz
G07 - CHECKING-DEVICES
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Patent Grant
Method for detecting an electroconductive element in a document
Patent number
6,094,147
Issue date
Jul 25, 2000
Giesecke & Devrient GmbH
Christoph Gerz
G07 - CHECKING-DEVICES
Information
Patent Grant
Method and apparatus for dynamic determination of the thickness and...
Patent number
5,691,474
Issue date
Nov 25, 1997
Giesecke & Devrient GmbH
Christoph Gerz
G01 - MEASURING TESTING
Patents Applications
last 30 patents
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Patent Application
Methods and devices for testing the colour fastness of imprinted ob...
Publication number
20030123049
Publication date
Jul 3, 2003
Christoph Gerz
G07 - CHECKING-DEVICES