Number | Date | Country | Kind |
---|---|---|---|
3834030 | Oct 1988 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
4147623 | Koff et al. | Apr 1979 | |
4246105 | Rohrer | Jan 1981 | |
4549969 | Gerlach et al. | Oct 1985 | |
4696749 | Habermann et al. | Sep 1987 |
Number | Date | Country |
---|---|---|
58-34092 | Feb 1983 | JPX |
Entry |
---|
Berichte der Deutschen Chemischen Gesellschaft, vol. 33, (1900), p. 36. |