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Liner power supply
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Patent number D546283
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Issue date Jul 10, 2007
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Jui-Kai Tseng
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Albert Cho
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D13 - Equipment for production, distribution, or transformation of energy
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Voltage regulator
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Patent number D495658
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Issue date Sep 7, 2004
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Albert Cho
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D13 - Equipment for production, distribution, or transformation of energy
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Uninterrupted power supply
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Patent number 6,661,669
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Issue date Dec 9, 2003
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Albert Cho
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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Uninterruptible power supply
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Patent number D482653
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Issue date Nov 25, 2003
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Albert Cho
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D13 - Equipment for production, distribution, or transformation of energy