Number | Date | Country | Kind |
---|---|---|---|
28869/75 | Jul 1975 | UK | |
28900/75 | Jul 1975 | UK |
Number | Name | Date | Kind |
---|---|---|---|
2779781 | Copelin et al. | Jan 1957 | |
3413309 | Makosza et al. | Nov 1968 | |
4012428 | Ohno et al. | Mar 1977 |
Number | Date | Country |
---|---|---|
1,227,144 | Apr 1971 | UK |
Entry |
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Starks, J. Amer. Chem. Soc., vol. 93, pp. 195-199 (1971). |