Number | Date | Country | Kind |
---|---|---|---|
48957/76 | Nov 1976 | GB |
Number | Name | Date | Kind |
---|---|---|---|
2505457 | Bird | Apr 1950 | |
2724668 | Russell | Nov 1955 | |
2826552 | Bonewitz et al. | Mar 1958 | |
3085975 | Jennings | Apr 1963 | |
3751372 | Zecher | Aug 1973 | |
3870573 | Smith | Mar 1975 |
Number | Date | Country |
---|---|---|
932845 | Jul 1963 | GB |
Entry |
---|
Kejha, Chem. Abs. vol. 62: 13390b (1965). |