Number | Date | Country | Kind |
---|---|---|---|
55-2135 | Jan 1980 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
1929441 | Milligan | Oct 1933 | |
3607029 | Goret et al. | Sep 1971 | |
4117092 | Beltz et al. | Sep 1978 | |
4118462 | Desire et al. | Oct 1978 |
Number | Date | Country |
---|---|---|
464370 | Apr 1937 | GBX |
1521457 | Aug 1975 | GBX |
Entry |
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European Chemical News, Jul. 2, 1976, p. 24. |
Chemical Engineering Progress, Nov., 1980, pp. 41-45. |