Number | Name | Date | Kind |
---|---|---|---|
2005317 | Helwert et al. | Jun 1935 | |
2366034 | Letang | Dec 1944 | |
2522034 | Grossmann et al. | Sep 1950 | |
2673198 | Grandjean et al. | Mar 1954 | |
3278486 | Meek et al. | Oct 1966 | |
3340221 | Goldberg et al. | Sep 1967 | |
3920855 | Dawson et al. | Nov 1975 | |
4000118 | Dawson et al. | Dec 1976 | |
4018826 | Gless et al. | Apr 1977 | |
4051138 | Wang et al. | Sep 1977 |
Entry |
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Korshak et al., Index Chemicus, vol. 38, #90867, (1968). |