Number | Date | Country | Kind |
---|---|---|---|
4098/73 | Mar 1973 | CH |
Number | Name | Date | Kind |
---|---|---|---|
2448047 | Peppel | Aug 1948 | |
2760994 | Gwynn | Aug 1956 | |
3284517 | Rylander et al. | Nov 1966 | |
3591656 | Kroll | Jul 1971 |
Number | Date | Country |
---|---|---|
1,123,837 | Aug 1968 | UK |
Entry |
---|
Hotta et al., Bulletin of the Chemical Society of Japan, Vol. 44, pp. 1348-1352 (1971). |