Number | Name | Date | Kind |
---|---|---|---|
D266509 | Marshall | Oct 1982 | |
D285203 | Milroy et al. | Aug 1986 | |
D309298 | Pushelberg | Jul 1990 | |
D317609 | Wei | Jun 1991 | |
D318654 | Huang | Jul 1991 | |
D319439 | Danielson et al. | Aug 1991 | |
D337757 | Wu | Jul 1993 | |
D340059 | Wetzel et al. | Oct 1993 | |
D346606 | Harris et al. | May 1994 | |
D350747 | McClendon | Sep 1994 |