Number | Date | Country | Kind |
---|---|---|---|
DM/015 086 | Nov 1989 | IBX |
Number | Name | Date | Kind |
---|---|---|---|
2337745 | Garstang | Dec 1943 | |
2347174 | Cross et al. | Apr 1944 | |
2384538 | Biller | Aug 1945 | |
3024355 | Lipscamb | Mar 1962 | |
3619600 | Kryder | Nov 1971 | |
3833801 | Trevithick | Sep 1974 |