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27 Jan US patent 4,488,042

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26 Jan Replication Produces Holographic Optics In Volume

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26 Jan Developments in Holographic-based Scanner Designs

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26 Jan US patent 5,182,659

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26 Jan US patent 5,270,842

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26 Jan US patent 6,288,817

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26 Jan US Patent US04923262

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26 Jan Holographic-based Scanner Designs

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