Number | Date | Country | Kind |
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2000-140903 | May 2000 | JP |
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3067357 | Fridrich | Dec 1962 | A |
6271628 | Sugitani et al. | Aug 2001 | B1 |
Number | Date | Country |
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3305468 | Aug 1984 | DE |
901151 | Mar 1999 | EP |
2043331 | Oct 1980 | GB |
4280057 | Oct 1992 | JP |
Entry |
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U.S. patent application 2001/0038267 A1 Ono et al. Nov. 8, 2001. |