Number | Name | Date | Kind |
---|---|---|---|
3239582 | Keskkula | Mar 1966 | |
3755244 | Hart | Aug 1973 | |
3925301 | Engel et al. | Dec 1975 | |
3989770 | Prinz et al. | Nov 1976 | |
4001035 | Ito et al. | Jan 1977 | |
4097425 | Niznik | Jun 1978 | |
4148842 | Yu et al. | Apr 1979 | |
4163762 | Rudd | Aug 1979 | |
4343912 | Lim | Aug 1982 | |
4373067 | Dieck et al. | Feb 1983 |
Number | Date | Country |
---|---|---|
2105487 | Aug 1972 | DEX |
Entry |
---|
Derwent Abs. 76950e/37 (9/82), BASF AG DE3206184. |
Derwent Abs. 25340x/14 (2/1976), Teijin Chem. J51020245. |
Derwent Abs. 21401w/13 (2/1975), Teijin Chem. FR2233156. |
Derwent Abs. 30654b/16 (3/1979), Sumitomo J54032578. |