Number | Date | Country | Kind |
---|---|---|---|
12435/75 | Sep 1975 | CH |
Number | Name | Date | Kind |
---|---|---|---|
2748134 | Stoll et al. | May 1956 | |
3105072 | Felder et al. | Sep 1963 | |
3933830 | Barth et al. | Jan 1976 | |
3970663 | Regnier et al. | Jul 1976 |
Number | Date | Country |
---|---|---|
2,162,917 | Sep 1972 | DT |
2,327,193 | Jan 1974 | DT |
2,327,414 | Dec 1973 | DT |
2,452,405 | May 1975 | DT |
Entry |
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Kushner, S. et al, J. Org. Chem., 13, 834 (1948). |