Number | Name | Date | Kind |
---|---|---|---|
D269310 | Wells | Jun 1983 | |
D390398 | Baker et al. | Feb 1998 | |
2428073 | Handel | Sep 1947 | |
2872145 | Godlsholl | Feb 1959 | |
3198469 | Callanan | Aug 1965 | |
3481487 | Paruolo | Dec 1969 | |
3622011 | Snow | Nov 1971 | |
3799357 | Govang | Mar 1974 | |
3985325 | Ginsburg et al. | Oct 1976 | |
4286764 | Pfeifer | Sep 1981 | |
4606467 | Everett | Aug 1986 | |
4619428 | Bailey | Oct 1986 | |
4687094 | Allsop et al. | Aug 1987 | |
4898354 | Whittington et al. | Feb 1990 | |
5083668 | Bushey | Jan 1992 | |
5499723 | Morrow | Mar 1996 |