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Optical device
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Patent number 9,891,443
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Issue date Feb 13, 2018
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NIDEC SANKYO CORPORATION
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Yoshihiro Hamada
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Compact music box
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Patent number 5,949,004
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Issue date Sep 7, 1999
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Sankyo Seiki Mfg. Co., Ltd.
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Makoto Orii
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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Music box
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Patent number 5,877,439
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Issue date Mar 2, 1999
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Sankyo Seiki Mfg. Co., Ltd.
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Shinroku Asakawa
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G10 - MUSICAL INSTRUMENTS ACOUSTICS