| Number | Name | Date | Kind |
|---|---|---|---|
| D302451 | Bull et al. | Jul 1989 | |
| D304358 | Armstrong et al. | Oct 1989 | |
| D321229 | Dalton et al. | Oct 1991 | |
| D324089 | Miller | Feb 1992 | |
| D328770 | Henderson et al. | Aug 1992 | |
| D329887 | Yang | Sep 1992 | |
| D330058 | Yang | Oct 1992 | |
| 3970302 | McFee | Jul 1976 | |
| 4496147 | DeCloux et al. | Jan 1985 | |
| 4685669 | DeCloux | Aug 1987 | |
| 4708338 | Potts | Nov 1987 | |
| 4726581 | Chang | Feb 1988 | |
| 4830362 | Bull | May 1989 | |
| 4838543 | Armstrong et al. | Jun 1989 | |
| 4909504 | Yang | Mar 1990 | |
| 4934688 | Lo | Jun 1990 | |
| 4934690 | Bull | Jun 1990 | |
| 4982952 | Wang | Jan 1991 | |
| 4989858 | Young et al. | Feb 1991 | |
| 5000441 | Wang | Mar 1991 | |
| 5000443 | Dalebout et al. | Mar 1991 | |
| 5004224 | Wang | Apr 1991 | |
| 5007631 | Wang | Apr 1991 | |
| 5013031 | Bull | May 1991 | |
| 5033733 | Findlay | Jul 1991 | |
| 5039087 | Kuo | Aug 1991 | |
| 5048821 | Kuo-Liang | Sep 1991 | |
| 5054770 | Bull | Oct 1991 | |
| 5078390 | Hurt | Jan 1992 |