Number | Date | Country | Kind |
---|---|---|---|
3729268 | Sep 1987 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
4152267 | Davis et al. | May 1979 | |
4789474 | Gaudfrin | Dec 1988 | |
4790935 | Johnson | Dec 1988 |
Number | Date | Country |
---|---|---|
3044696 | Jun 1982 | DEX |
Entry |
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Ullmans Encyklopdie der technischen Chemie, 4. Auflage, Band 2, Verfahrenstechnik I, 1972, pp. 177-178. |
Chem. Ing. Techn. 55, 1983, Nr. 11, pp. 823-829 and 829-839. |