Number | Name | Date | Kind |
---|---|---|---|
3855810 | Simon et al. | Dec 1974 | |
4638639 | Marshall et al. | Jan 1987 | |
4778497 | Hanson et al. | Oct 1988 | |
4894076 | Dobracki et al. | Jan 1990 |
Entry |
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High Efficiency Turboexpander in an N.sub.2 Liquefier, paper presented at the AIChE 1985 Spring Meeting, Houston, Texas Mar. 24-28, L. C. Kun and T. C. Hanson pp. 1-12. |