Number | Date | Country | Kind |
---|---|---|---|
73.22086 | Jun 1973 | FR |
Number | Name | Date | Kind |
---|---|---|---|
3502481 | Schaap et al. | Mar 1970 | |
3743516 | Lundstedt et al. | Jul 1973 |
Entry |
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michaels, A. S., "New Separation Technique for the CPI," Chem. Eng. Prog. Dec., 1968, pp. 31-43. |