Number | Name | Date | Kind |
---|---|---|---|
2262002 | Hopff et al. | Nov 1941 | |
3067244 | Robinson et al. | Dec 1962 | |
3341601 | Mertzweiller | Sep 1967 |
Number | Date | Country |
---|---|---|
29259 | May 1981 | EPX |
1045393 | May 1958 | DEX |
Entry |
---|
Bachner et al., Chem. Abst., vol. 95, #115757F (1981). |