Number | Date | Country | Kind |
---|---|---|---|
87 17323 | Dec 1987 | FRX |
Number | Name | Date | Kind |
---|---|---|---|
3278562 | Thigpen et al. | Oct 1966 | |
3927122 | Bourdin et al. | Dec 1975 | |
3927123 | Bourdin et al. | Dec 1975 |
Number | Date | Country |
---|---|---|
178929 | Apr 1986 | EPX |
Entry |
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W. von F. Doering and L. Speers, J. Am. Chemical Soc'y, vol. 72, (1959), pp. 5515-5518. |