Number | Date | Country | Kind |
---|---|---|---|
13003/77 | Mar 1977 | GBX |
Number | Name | Date | Kind |
---|---|---|---|
4075233 | Marx et al. | Feb 1978 |
Number | Date | Country |
---|---|---|
1768569 | Jul 1977 | DEX |
Entry |
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Canceill et al., Compt. Rend. (Acad. Science, Paris), Ser. C. 285, No. 1, pp. 37-40 (1977). |
Chemical Abstracts, vol. 71, 3540(c) (1969). |