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Continuous use display system
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Hewlett-Packard Development Company, L.P.
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Thomas J. Gilg
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H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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3814511
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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1981829
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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1972904
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Patent number 1,972,904
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Issue date Sep 11, 1934
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Patent number 1,929,815
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY