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Miniature motor
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Patent number 4,806,811
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Issue date Feb 21, 1989
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Mabuchi Motor Co. Ltd.
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Etsuo Mayumi
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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Bearing device for small rotary machines
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Patent number 4,746,231
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Issue date May 24, 1988
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Mabuchi Motor Co., Ltd.
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Michio Hoshino
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Brushgear
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Patent number 4,494,029
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Issue date Jan 15, 1985
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Mabuchi Motor Co., Ltd.
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Michio Hoshino
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H01 - BASIC ELECTRIC ELEMENTS