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| D318723 | Chiu | Jul 1991 | |
| D323382 | Wang | Jan 1992 | |
| D323708 | Wang | Feb 1992 | |
| D333866 | Wang | Mar 1993 | |
| D340765 | Joss et al. | Oct 1993 | |
| D346208 | Smith | Apr 1994 | |
| D346855 | Chiu | May 1994 | |
| D347683 | Chiu | Jun 1994 | |
| D350191 | Tsuji | Aug 1994 | |
| D353662 | Patton et al. | Dec 1994 | |
| D353885 | Hydak et al. | Dec 1994 | |
| D354343 | Goldstein | Jan 1995 | |
| D355247 | Shao | Feb 1995 | |
| 4928204 | Wang | May 1990 | |
| 5110263 | Chiu | May 1992 | |
| 5131810 | Wang | Jul 1992 | |
| 5304040 | Wang | Apr 1994 |