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Surge protection device
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Patent number 5,486,709
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Issue date Jan 23, 1996
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Agency of Industrial Science and Technology
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Yutaka Hayashi
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H01 - BASIC ELECTRIC ELEMENTS
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Surge protection device
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Patent number 5,376,809
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Issue date Dec 27, 1994
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Agency of Industrial Science & Technology, Ministry of International Trade &...
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Yutaka Hayashi
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H01 - BASIC ELECTRIC ELEMENTS
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Surge protection device
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Patent number 5,371,385
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Issue date Dec 6, 1994
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Agency of Industrial Science and Technology
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Yutaka Hayashi
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H01 - BASIC ELECTRIC ELEMENTS