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Image display
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Patent number 7,088,058
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Issue date Aug 8, 2006
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Matsushita Electric Industrial Co., Ltd.
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Tetsuro Shiota
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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LCD projector
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Patent number 6,409,350
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Issue date Jun 25, 2002
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Matsushita Electric Industrial Co., Ltd.
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Yasuhiro Kakimoto
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Liquid crystal projector
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Patent number 6,243,067
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Issue date Jun 5, 2001
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Matsushita Electric Industrial Co., Ltd.
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Toshiyuki Noguchi
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS