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Thin panel illuminator
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Patent number 5,136,480
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Issue date Aug 4, 1992
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Lumitex, Inc.
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David J. Pristash
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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Thin panel illuminator
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Patent number 5,005,108
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Issue date Apr 2, 1991
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Lumitex, Inc.
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David J. Pristash
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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Light emitting diode lamp
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Patent number 4,929,866
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Issue date May 29, 1990
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Mitsubishi Cable Industries, Ltd.
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Hiroaki Murata
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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Light diffuser
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Patent number 4,642,736
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Issue date Feb 10, 1987
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Mitsubishi Rayon Company, Ltd.
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Tokihiko Masuzawa
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS