Number | Date | Country | Kind |
---|---|---|---|
2950135 | Dec 1979 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
3476767 | Bencze | Nov 1969 | |
3637718 | Kramer et al. | Jan 1972 | |
4194009 | Molloy et al. | Mar 1980 |
Number | Date | Country |
---|---|---|
1357633 | Jun 1974 | GBX |
Entry |
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Joullie et al., Chem. Abstract, 82, 72789e (1975) (Abstract of Ger. Offen. 2,413,605). |
Journal fur Praktische Chemie, vol. 311, pp. 183-186 (1969). |