Number | Date | Country | Kind |
---|---|---|---|
3143734 | Nov 1981 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
2181731 | Hinckley | Nov 1939 | |
3179159 | Jafs | Apr 1965 | |
3259553 | Halbritter | Jul 1966 | |
3303106 | Standiford | Feb 1967 | |
3428107 | Backteman | Feb 1969 | |
3926739 | Izumi | Dec 1975 | |
4305790 | Kramer, Sr. | Dec 1981 | |
4346113 | Faust et al. | Aug 1982 | |
4358536 | Thorsson et al. | Nov 1982 |
Number | Date | Country |
---|---|---|
2156765 | Jan 1973 | FRX |
Entry |
---|
Weiss, Moglichkeiten zur Energieeinsparung bei der Destillation, 32 Chem. Techn. 448-451, Sep. 1980. |