| Number | Name | Date | Kind |
|---|---|---|---|
| D197755 | Myers | Mar 1964 | |
| D222598 | Weiand | Nov 1971 | |
| D297256 | Schwarz | Aug 1988 | |
| D321888 | Brotherton | Nov 1991 | |
| 3596680 | Adams | Aug 1971 | |
| 4596426 | Clap | Jun 1986 | |
| 4602657 | Anderson, Jr. et al. | Jul 1986 | |
| 5036884 | Miller et al. | Aug 1991 | |
| 5117867 | Adams | Jun 1992 | |
| 5277224 | Hutton et al. | Jan 1994 |
| Entry |
|---|
| Publication showing a manifold. Astava B.V., Meppel, Holland, 1992. |