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Flat picture tube
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Patent number 5,998,917
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Issue date Dec 7, 1999
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Youare Electronics, Co.
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Keum Sik Lee
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H01 - BASIC ELECTRIC ELEMENTS
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Gas flat display tube
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Patent number 5,977,939
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Issue date Nov 2, 1999
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Youare Electronics Co.
-
Keum Sik Lee
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H01 - BASIC ELECTRIC ELEMENTS
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Flat picture tube
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Patent number 5,804,916
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Issue date Sep 8, 1998
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Youare Electronics Co.
-
Keum Sik Lee
-
H01 - BASIC ELECTRIC ELEMENTS
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