Number | Date | Country | Kind |
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10-372740 | Dec 1998 | JP |
Number | Name | Date | Kind |
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4316191 | Sawatari et al. | Feb 1982 | A |
5504490 | Brendle et al. | Apr 1996 | A |
5940029 | Ninomiya et al. | Aug 1999 | A |
6087986 | Shoki et al. | Jul 2000 | A |
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