Number | Date | Country | Kind |
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11-266604 | Sep 1999 | JP | |
2000-044381 | Feb 2000 | JP |
Number | Date | Country |
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0 050 510 | Apr 1982 | EP |
0 220 501 | May 1987 | EP |
WO 96 31098 | Oct 1996 | WO |
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