Number | Date | Country | Kind |
---|---|---|---|
13025/73 | Sep 1973 | CH |
Number | Name | Date | Kind |
---|---|---|---|
2465951 | Witte | Mar 1949 | |
2465952 | Witte et al. | Mar 1949 | |
3626004 | Guertin | Dec 1971 |
Number | Date | Country |
---|---|---|
801,037 | Sep 1958 | UK |
Entry |
---|
Merck Index, Seventh Edition, (1960), p. 722. |