Number | Date | Country | Kind |
---|---|---|---|
8005006 | Sep 1980 | NLX |
Number | Name | Date | Kind |
---|---|---|---|
3492131 | Schlatter | Jan 1970 | |
3642491 | Schlatter | Feb 1972 | |
3879372 | Boesten | Apr 1975 | |
4029701 | Haas et al. | Jun 1977 | |
4031258 | Haas et al. | Jun 1977 |
Entry |
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Robert A. Mazur et al., J. of Am. Chem. Soc., 91, 2684-2691 (1961). |