| Number | Name | Date | Kind |
|---|---|---|---|
| D170805 | Hummert | Nov 1953 | |
| D173335 | Bancroft | Nov 1954 | |
| D179639 | Harby | Feb 1957 | |
| D312565 | Abraham et al. | Dec 1990 | |
| D331531 | Guhl et al. | Dec 1992 | |
| D332386 | Plummer | Jan 1993 | |
| D332904 | Plummer et al. | Feb 1993 | |
| D343691 | Guhl et al. | Jan 1994 | |
| D360357 | Peterson et al. | Jul 1995 | |
| 1572265 | Bostwick et al. | Feb 1926 | |
| 1753700 | Graff et al. | Apr 1930 | |
| 1941432 | Doering | Dec 1933 | |
| 2817511 | Reynaud | Dec 1957 | |
| 3044311 | Gagnon | Jul 1962 |