Number | Date | Country | Kind |
---|---|---|---|
2612784 | Mar 1976 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
3926875 | Tsugukuni et al. | Dec 1975 | |
3950285 | Wolgemuth | Apr 1976 | |
3993849 | Victorius | Nov 1976 | |
4007215 | Hartmann | Feb 1977 |
Entry |
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Chem. Abstracts, vol. 53, No. 2, Jan. 25, 1959, 1200b, (Iwakura et al.). |