Number | Date | Country | Kind |
---|---|---|---|
4270/89 | Nov 1989 | CHX |
Number | Name | Date | Kind |
---|---|---|---|
3706768 | Boys et al. | Dec 1972 | |
4506083 | Kirta et al. | Mar 1985 | |
4681950 | Fischer et al. | Jul 1987 | |
4752813 | Shen et al. | Aug 1978 |
Number | Date | Country |
---|---|---|
919107 | Nov 1954 | DEX |
2546822 | Apr 1977 | DEX |
Entry |
---|
Derwent Abstract 83-744573/34 (1983). |
B. K. Manukian, Helv. Chim. Acta, 59, 2609 (1976). |
Chem. Abst. 53, 411c (1959). |