Number | Name | Date | Kind |
---|---|---|---|
D302078 | Dewet | Jul 1989 | |
1438350 | Zorn | Dec 1922 | |
2899117 | Glowka | Aug 1959 | |
3966100 | Nelson | Jun 1976 | |
4324352 | Goldfarb et al. | Apr 1982 | |
4685572 | Jamison | Aug 1987 | |
4951484 | Rohald et al. | Aug 1990 | |
5011054 | Mauffette | Apr 1991 | |
5018650 | Maufette | May 1991 |