| Number | Name | Date | Kind |
|---|---|---|---|
| D250397 | Christian | Nov 1978 | |
| D258338 | Gersin | Feb 1981 | |
| D364112 | Dickinson et al. | Nov 1995 | |
| D368234 | Dickinson et al. | Mar 1996 | |
| D409945 | Hensen | May 1999 | |
| 2707588 | Amberg | May 1955 | |
| 3128029 | Price et al. | Apr 1964 | |
| 3291361 | Commeyras | Dec 1966 | |
| 3664568 | Mac Daniel | May 1972 | |
| 4231476 | Competon et al. | Nov 1980 |