Number | Name | Date | Kind |
---|---|---|---|
2903395 | Salivar | Sep 1959 | |
3586483 | Heider et al. | Jun 1971 |
Number | Date | Country |
---|---|---|
535,471 | Jan 1957 | CA |
173,888 | Aug 1965 | SU |
Entry |
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Chemical Abstracts, vol. 64, 1966, 1907 a relied on. |
Furman et al., "Standard Method of Chemical Analysis", vol. 1, 6th Ed. p. 262. |
Soviet Inventions Illustrated, Mar. 1966, 173888 relied on. |