Number | Name | Date | Kind |
---|---|---|---|
2097864 | Platz et al. | Nov 1937 | |
2781390 | Mannheimer | Feb 1957 | |
2876259 | Nordgren | Mar 1959 | |
3198822 | Mannheimer | Aug 1965 | |
3452066 | Mannheimer | Jun 1969 | |
4098818 | Krummel et al. | Jul 1978 | |
4107096 | McEntire et al. | Aug 1978 |
Entry |
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Schwartz et al, Surface Active Agents, vol. I (1949) 25-27 & 218-228. |