Number | Name | Date | Kind |
---|---|---|---|
D393672 | Clay | Apr 1998 | |
676506 | Knight et al. | Jun 1901 | |
1482232 | Hazeltine | Jan 1924 | |
1795732 | Miller | Mar 1931 | |
2050402 | Walsh | Mar 1936 | |
2861810 | Veatch | Nov 1958 | |
3325168 | Fyanes | Jun 1967 | |
3630601 | Lehovec | Dec 1971 | |
5013046 | Koch | May 1991 | |
5067719 | Mook | Nov 1991 | |
5427378 | Murphy | Jun 1995 | |
5662534 | Kroll et al. | Sep 1997 |