Number | Name | Date | Kind |
---|---|---|---|
2685812 | Dmitroff | Aug 1954 | |
2909047 | Walterschied-Muller et al. | Oct 1959 | |
3350042 | Stewart et al. | Oct 1967 | |
4004506 | McInerny | Jan 1977 | |
4006787 | Rumpp et al. | Feb 1977 | |
4038508 | Mapelsden | Jul 1977 | |
4455886 | Schmitt | Jun 1984 | |
4521650 | Oswald | Jun 1985 | |
4766641 | Daglow | Aug 1988 | |
4878880 | Williams | Nov 1989 | |
4955253 | Sakai et al. | Sep 1990 | |
4984776 | Smith | Jan 1991 | |
5146808 | Hoshino | Sep 1992 | |
5150851 | Manusch et al. | Sep 1992 | |
5190390 | Ming-Tai | Mar 1993 | |
5589671 | Hackbarth et al. | Dec 1996 | |
5590564 | Kishimoto | Jan 1997 | |
5632517 | Paulik et al. | May 1997 |