| Number | Name | Date | Kind |
|---|---|---|---|
| 1624941 | Fulkerson | Apr 1927 | |
| 3473489 | Sargent | Oct 1969 | |
| 3610135 | Sheridan | Oct 1971 | |
| 4384513 | Pierick | May 1983 | |
| 5514402 | Williams | May 1996 |
| Number | Date | Country |
|---|---|---|
| 7903034 | Oct 1980 | NLX |
| 5883 | Feb 1901 | GBX |
| Entry |
|---|
| Advertisement, Washington Post, Aug. 19, 1983, one page. |