Number | Name | Date | Kind |
---|---|---|---|
3232590 | Eckert | Feb 1966 | |
3259380 | Brown | Jul 1966 | |
3281133 | Eckert | Oct 1966 | |
3360246 | Eckert | Dec 1967 | |
3446489 | Leva | May 1969 | |
3524731 | Effron et al. | Aug 1970 | |
3570825 | Eckert | Mar 1971 | |
4427605 | Meier et al. | Jan 1984 | |
4472325 | Robbins | Sep 1984 | |
4689183 | Helms et al. | Aug 1987 | |
4816191 | Berven et al. | Mar 1989 | |
5013491 | Nutter | May 1991 | |
5158713 | Ghelfi et al. | Oct 1992 |
Entry |
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"Mellatech Column Internals, The Concept for Packed Columns", Brochure 22.51.06.40-V.91-50, Sulzer Brothers Limited, Product Division Chemtech, Winterthur, Switzerland. |