Number | Name | Date | Kind |
---|---|---|---|
D289342 | Reichow | Apr 1987 | |
D298287 | Stravitz | Nov 1988 | |
D303330 | Stanton | Sep 1989 | |
D307977 | Egly et al. | May 1990 | |
D320707 | Garfinkle | Oct 1991 | |
D321279 | Mark | Nov 1991 | |
D326357 | Chow | May 1992 | |
D326378 | Yunger et al. | May 1992 | |
3710900 | Fink | Jan 1973 | |
4889244 | Hean et al. | Dec 1989 |