Number | Date | Country | Kind |
---|---|---|---|
72.34901 | Oct 1972 | FR | |
72.41059 | Nov 1972 | FR |
Number | Name | Date | Kind |
---|---|---|---|
1989004 | Fife | Jan 1935 | |
2972522 | Urban | Feb 1961 | |
3087793 | Hay | Apr 1963 | |
3363989 | Deal et al. | Jan 1968 | |
3622273 | Roberts | Nov 1971 | |
3777010 | Nicksic et al. | Dec 1973 | |
3793440 | Schulze | Feb 1974 |
Number | Date | Country |
---|---|---|
1,141,619 | Jan 1956 | FR |
341,684 | Jan 1931 | UK |
Entry |
---|
"Chemical Abstracts", Vol. 41, 1947, pp. 1635-1636. |
Martell and Calvin, Chemistry of the Metal Chelate Compounds, Prentice Hall, Englewood, N.J., 1956, pp. 55-60. |