Number | Name | Date | Kind |
---|---|---|---|
3216186 | Opfell | Nov 1965 | |
3900676 | Alderson | Aug 1975 | |
4218509 | Edgar et al. | Sep 1980 |
Number | Date | Country |
---|---|---|
154784 | Apr 1982 | DDX |
158334 | Jan 1983 | DDX |
Entry |
---|
Translation of German Democratic Rep. 154, 784 (Published Apr. 12, 1982). |
Translation of German Democratic Rep. 158, 334 (Published Jan. 12, 1983). |