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|---|---|---|---|
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| 5166719 | Chinzei et al. | Nov 1992 | A |
| 5636923 | Nejat-Bina | Jun 1997 | A |
| D404253 | Littmann | Jan 1999 | S |
| D497282 | Kelly et al. | Oct 2004 | S |
| D511434 | Feil | Nov 2005 | S |
| D550030 | Peterson | Sep 2007 | S |
| D567017 | Garman et al. | Apr 2008 | S |
| D576837 | Le Vavasseure | Sep 2008 | S |