Number | Name | Date | Kind |
---|---|---|---|
3904557 | Guthrie et al. | Sep 1975 | |
3988268 | Dietrich et al. | Oct 1976 | |
4160076 | Guthrie et al. | Jul 1979 | |
4307219 | Larson | Dec 1981 | |
4323656 | Strickman et al. | Apr 1982 | |
4377645 | Guthrie et al. | Mar 1983 | |
4384050 | Guthrie | May 1983 | |
4384051 | Guthrie | May 1983 | |
4503198 | Miyai et al. | Mar 1985 | |
4558149 | Larson | Dec 1985 |
Number | Date | Country |
---|---|---|
1483687 | Oct 1975 | GBX |
Entry |
---|
U.S.S.N. 562,459, U.S.S.N. 739,542, (copies not included). |