Number | Date | Country | Kind |
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2000-303201 | Oct 2000 | JP | |
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5991471 | Yu | Nov 1999 | A |
6580840 | McBrien et al. | Jun 2003 | B1 |
20020005975 | Nakamoto | Jan 2002 | A1 |
Entry |
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Publication No. 02-196212, Patent Abstracts of Japan, Publication Date Aug. 2, 1990, inventors Takefumi et al. |