Number | Date | Country | Kind |
---|---|---|---|
70.46407 | Dec 1970 | FR |
Number | Name | Date | Kind |
---|---|---|---|
3158644 | Demole et al. | Nov 1964 | |
3754016 | Oberhansli | Aug 1973 |
Number | Date | Country |
---|---|---|
2,008,878 | Sep 1970 | DT |
1,206,981 | Sep 1970 | UK |
Entry |
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House, Modern Synthetic Reactions, pp. 19, 20, 26-28, 615, (1972). |