Number | Date | Country | Kind |
---|---|---|---|
2743345 | Sep 1977 | DEX |
Number | Date | Country |
---|---|---|
700036 | Nov 1940 | DE2 |
711709 | Sep 1941 | DE2 |
850750 | Jul 1952 | DEX |
1043342 | Jun 1959 | DEX |
2303619 | Aug 1974 | DEX |
2461922 | Aug 1976 | DEX |
Entry |
---|
Reppe et al., Annalen der Chemie, vol. 596 (1955), pp. 80-87. |