Number | Name | Date | Kind |
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D225871 | Crannell | Jan 1973 | |
D248912 | Canfield et al. | Aug 1978 | |
D302907 | Otto et al. | Aug 1989 | |
D331672 | Brodeck | Dec 1992 | |
D332189 | Brodbeck | Jan 1993 | |
D359631 | Bubb | Jun 1995 | |
D376278 | Zivari | Dec 1996 | |
D392475 | Kelly | Mar 1998 | |
D402484 | Sandy | Dec 1998 |