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One way holograms
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Patent number 5,519,516
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Issue date May 21, 1996
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Hughes Aircraft Company
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John E. Wreede
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Segmented image holographic disks
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Patent number 5,471,328
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Issue date Nov 28, 1995
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Hughes Aircraft Company
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John E. Wreede
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Dual image CHMSLS
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Patent number 5,455,692
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Issue date Oct 3, 1995
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Hughes Aircraft Company
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John E. Wreede
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B60 - VEHICLES IN GENERAL
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Display hologram
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Patent number 5,455,693
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Issue date Oct 3, 1995
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Hughes Aircraft Company
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John E. Wreede
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G02 - OPTICS
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Multiple layer holograms
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Patent number 5,282,066
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Issue date Jan 25, 1994
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Hughes Aircraft Company
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Kevin Yu
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Superimposed tell-tales
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Patent number 5,214,425
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Issue date May 25, 1993
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Hughes Aircraft Company
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John E. Wreede
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G02 - OPTICS
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Guard holograms
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Patent number 5,138,470
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Issue date Aug 11, 1992
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Hughes Aircraft Company
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Gaylord E. Moss
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G02 - OPTICS
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