Number | Date | Country | Kind |
---|---|---|---|
3914650 | May 1989 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
3232980 | Shultis et al. | Feb 1966 | |
3444156 | Montrnollin et al. | May 1969 | |
4562249 | Schwander et al. | Dec 1985 |
Entry |
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Sandler et al., "Organic Functional Group Preparations", Academic Press, New York, 1968, pp. 272-277. |