Number | Name | Date | Kind |
---|---|---|---|
1413864 | Mann, Jr. | Apr 1922 | |
2985589 | Broughton et al. | May 1961 | |
3114782 | Fleck et al. | Dec 1963 | |
3201491 | Stine et al. | Aug 1965 | |
3235610 | Wymore | Feb 1966 | |
3265750 | Peck et al. | Aug 1966 | |
3510423 | Neuzil et al. | May 1970 | |
3558732 | Neuzil | Jan 1971 | |
3668267 | Hedge | Jun 1972 | |
3686342 | Neuzil | Aug 1972 | |
3997620 | Neuzil | Dec 1976 | |
4273621 | Forhoff | Jun 1981 |
Entry |
---|
Chemical Engineering, Nov. 27, 1980, p. 103. |