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Light beam scanning apparatus App 20040218031 - Yi, Jong-Su ;   et al. | 2004-11-04 |
Color separating/synthesizing apparatus Grant 6,678,015 - Yi , et al. January 13, 2 | 2004-01-13 |
Apparatus for projection display using reflection type LCD Grant 6,478,428 - Yi , et al. November 12, 2 | 2002-11-12 |
Color separating/synthesizing apparatus App 20020089679 - Yi, Jong Su ;   et al. | 2002-07-11 |
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