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|---|---|---|---|
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| D396479 | Satran et al. | Jul 1998 | |
| 3882580 | Lundgren | May 1975 | |
| 4087193 | Mundy | May 1978 | |
| 4318645 | McCreery | Mar 1982 | |
| 4447175 | Warren | May 1984 | |
| 4629371 | Maeda et al. | Dec 1986 | |
| 5074720 | Loqvist et al. | Dec 1991 | |
| 5147158 | Riviere | Sep 1992 | |
| 5230591 | Katbi et al. | Jul 1993 | |
| 5383750 | Satran et al. | Jan 1995 | |
| 5544984 | Pantzar | Aug 1996 |