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D328057 | Prager et al. | Jul 1992 | S |
D338653 | Morgan et al. | Aug 1993 | S |
D351134 | Hunziker | Oct 1994 | S |
5355300 | Zinn | Oct 1994 | A |
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D427146 | Wei | Jun 2000 | S |
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Number | Date | Country |
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WO 2010025596 | Mar 2010 | WO |