Number | Name | Date | Kind |
---|---|---|---|
D237453 | Perrino | Nov 1975 | |
D279545 | Norin et al. | Jul 1985 | |
D299692 | Steiner | Feb 1989 | |
D301115 | Chapin et al. | May 1989 | |
4829671 | Cheng | May 1989 | |
4850108 | Perrino et al. | Jul 1989 | |
5036734 | Morrow | Aug 1991 | |
5150522 | Gwo-Jiang | Sep 1992 |