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Computer operating apparatus
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Patent number D599413
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Issue date Sep 1, 2009
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Shimane Prefectural Government
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Kenji Izumi
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D21 - Games, toys, and sports goods
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Computer operating apparatus
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Patent number D597143
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Issue date Jul 28, 2009
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Shimane Prefectural Government
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Kenji Izumi
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D21 - Games, toys, and sports goods
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Graphic display device
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Patent number D534137
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Issue date Dec 26, 2006
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Shimane Prefectural Government
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Kenji Izumi
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D14 - Recording, communication, or information retrieval equipment
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Graphic display device
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Patent number D528517
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Issue date Sep 19, 2006
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Shimane Prefectural Government
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Kenji Izumi
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D14 - Recording, communication, or information retrieval equipment