Number | Date | Country | Kind |
---|---|---|---|
3301670 | Jan 1983 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
2370568 | Muskat et al. | Feb 1945 | |
3275674 | Bottenbruch et al. | Sep 1966 | |
3930932 | Bjorklund | Jun 1976 | |
4459239 | Di Toro | Jul 1984 |
Number | Date | Country |
---|---|---|
2234716 | Feb 1973 | DEX |
2459165 | Jun 1976 | DEX |
1392746 | Apr 1975 | GBX |
Entry |
---|
Chem. Abst.: 45:9269c, Kobbe, 1951. |