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Safety switch
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Patent number 6,617,951
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Issue date Sep 9, 2003
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Tsung-Mou Yu
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Ming-Shan Wang
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H01 - BASIC ELECTRIC ELEMENTS
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Switch assembly
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Patent number 6,469,610
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Issue date Oct 22, 2002
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Tsung-Mou Yu
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Chun-Hsu Chen
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H01 - BASIC ELECTRIC ELEMENTS
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See-saw switch
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Patent number 6,462,292
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Issue date Oct 8, 2002
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Tsung-Mou Yu
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Ming-Shan Wang
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H01 - BASIC ELECTRIC ELEMENTS
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Safety switch
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Patent number 6,400,250
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Issue date Jun 4, 2002
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Tsung-Mou Yu
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Ming-Shan Wang
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H01 - BASIC ELECTRIC ELEMENTS
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Switch structure
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Patent number 6,275,133
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Issue date Aug 14, 2001
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Tsung-Mou Yu
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Chun-Hsu Chen
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H01 - BASIC ELECTRIC ELEMENTS
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Switch structure
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Patent number 6,252,489
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Issue date Jun 26, 2001
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Tsung-Mou Yu
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Chun-Hsu Chen
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H01 - BASIC ELECTRIC ELEMENTS