Number | Name | Date | Kind |
---|---|---|---|
2668162 | Lowe | Feb 1954 | |
2676945 | Higgins | Apr 1954 | |
3297033 | Schmitt et al. | Jan 1967 | |
3468853 | Schmitt et al. | Sep 1969 | |
3674901 | Shepherd et al. | Jul 1972 | |
3867190 | Schmitt et al. | Feb 1975 | |
3960152 | Augurt et al. | Jun 1976 |
Entry |
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Korshak et al. in Academy of Sciences, USSR, Bulletin: Div. Chem. Sci. 1957, 889-893. |