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High contrast projection systen
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Patent number 7,522,339
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Issue date Apr 21, 2009
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Hewlett-Packard Development Company, L.P.
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Huei Pei Kuo
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Light guide screen louver device
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Patent number 7,397,984
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Issue date Jul 8, 2008
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Hewlett-Packard Development Company, L.P.
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Huei Pei Kuo
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Curved light guide screen
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Patent number 7,270,458
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Issue date Sep 18, 2007
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Hewlett-Packard Development Company, L.P.
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Huei Pei Kuo
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H04 - ELECTRIC COMMUNICATION TECHNIQUE