Number | Date | Country | Kind |
---|---|---|---|
77 24061 | Aug 1977 | FRX |
Number | Name | Date | Kind |
---|---|---|---|
2275809 | Roberts | Mar 1942 | |
3758506 | Godfroid et al. | Sep 1973 | |
3958004 | Cragoe, Jr. et al. | May 1976 | |
3969529 | Godfried et al. | Jul 1976 | |
4001301 | Fried et al. | Jan 1977 | |
4017632 | Thuillier et al. | Apr 1977 |
Number | Date | Country |
---|---|---|
2205442 | Aug 1973 | DEX |
2508895 | Sep 1975 | DEX |
2603890 | Aug 1976 | DEX |
2196791 | Mar 1974 | FRX |
Entry |
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Kirk-Othmer, "Encyclopedia of Chemical Technology", 2nd Ed., vol. 2, pp. 168-169. |