Number | Date | Country | Kind |
---|---|---|---|
534590 | Apr 1987 | CAX |
Number | Name | Date | Kind |
---|---|---|---|
2300379 | Attwood | Jul 1945 | |
3265455 | Ferdinand et al. | Aug 1966 | |
3565502 | Bracy et al. | Feb 1971 | |
3598464 | Moroziuk | Aug 1971 | |
3820299 | Verholt | Jun 1974 | |
4017134 | Lenglin et al. | Apr 1977 | |
4126364 | Reilly | Nov 1978 | |
4586759 | Wrobel | May 1986 |
Number | Date | Country |
---|---|---|
2180741 | Apr 1987 | GBX |
Entry |
---|
Widney Dorlec 20/30 System Brochures (undated). |