Number | Name | Date | Kind |
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D319807 | Simons et al. | Sep 1991 | |
3972556 | Mason, Jr. | Aug 1976 | |
4018472 | Mason, Jr. | Apr 1977 | |
4611796 | Orr | Sep 1986 | |
4775179 | Riggs | Oct 1988 | |
5078448 | Selzer et al. | Jan 1992 | |
5249837 | Luttrell | Oct 1993 |