Number | Name | Date | Kind |
---|---|---|---|
D210336 | Jenn et al. | Feb 1968 | |
3474724 | Jenn | Oct 1969 | |
3596650 | Cerola | Aug 1971 | |
3712819 | Field | Jan 1973 | |
3926171 | Kurek et al. | Dec 1975 | |
4413610 | Berlik | Nov 1983 | |
4413611 | Berlik et al. | Nov 1983 | |
4431892 | White | Feb 1984 | |
4527542 | Bales et al. | Jul 1985 |