Number | Date | Country | Kind |
---|---|---|---|
15960/77 | Dec 1977 | CHX |
Number | Name | Date | Kind |
---|---|---|---|
2405137 | Gale et al. | Aug 1946 | |
2619503 | Benner et al. | Nov 1952 | |
3517063 | Nason | Jun 1970 | |
3761521 | Alheritiere et al. | Sep 1973 |
Number | Date | Country |
---|---|---|
1520343 | Aug 1978 | GBX |
Entry |
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Kirk-Othmer, Encyclopedia of Chemical Technology, 2nd edition, vol. 2, pp. 83-91, 1963. |