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Selectively optically readable data carrier
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The product with a time-varying visual effect.
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Adjustment of the properties of a retinal protein in a photochromic product.
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Method and apparatus for verification of diffractive elements.
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Method and device for producing color images on substrates containing color bodies and products produced thereby
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Lamination apparatus and method for sheet materials having temperature-sensitive elements, and documents produced thereby
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Method and device for authenticating documents marked with photochromic systems
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Method and device for producing colour images by way of a uv laser on pigmented substrates, and products produced as a result
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Method for applying formulations which contain bacteriorhodopsin onto substrates, and products produced by this method
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Object produced by a molding process and marked by a diffraction grating, and method for the production thereof
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Bacteriorhodopsin-containing microcapsules and method for producing the same
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Identification feature.
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Document and method for producing a document
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