Number | Date | Country | Kind |
---|---|---|---|
2237373 | Jul 1972 | DT |
Number | Name | Date | Kind |
---|---|---|---|
2587858 | Keulemans | Mar 1952 | |
2725401 | Mertzweiller et al. | Nov 1955 |
Number | Date | Country |
---|---|---|
36,106 | Mar 1965 | DT |
702,241 | Jan 1954 | UK |
949,737 | Sep 1956 | DT |
Entry |
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Treybal, Liquid Extraction; 2nd Edit., pp. 343-344, 1963. |
Lemke, H., Chemical Abstracts, Vol. 62, col. 16040, 1965. |