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| August 26, 1999 |
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| November 2, 2001 |
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| April 16, 1999 |
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| January 26, 2001 |
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| December 28, 1998 |
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| September 24, 2001 |
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| August 30, 1999 |
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| July 29, 1999 |
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| June 4, 1998 |
| 6404936 | Subject image extraction method and apparatus
| December 12, 1997 |
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| January 29, 1998 |
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| July 28, 1997 |
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| June 12, 1998 |
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| February 18, 1998 |
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