Number | Name | Date | Kind |
---|---|---|---|
D234721 | Rosenberg | Apr 1975 | |
D235035 | Rosenberg | Apr 1975 | |
D238456 | Mouwen | Jan 1976 | |
D247252 | Rosenberg | Feb 1978 | |
D260175 | Hein et al. | Aug 1981 | |
D267117 | Rosenberg | Nov 1982 | |
D357737 | Spearman | Apr 1995 | |
3765536 | Rosenberg | Oct 1973 | |
3815754 | Rosenberg | Jun 1974 | |
4014797 | Raines et al. | Mar 1977 | |
4187182 | Rosenberg | Feb 1980 | |
5195527 | Hicks | Mar 1993 | |
5376270 | Spearman | Dec 1994 |