Number | Date | Country | Kind |
---|---|---|---|
87 13468 | Sep 1987 | FRX |
Number | Name | Date | Kind |
---|---|---|---|
2594105 | Watts | Apr 1952 | |
3261398 | Haeber | Jul 1966 | |
3638720 | Thomas | Feb 1972 | |
3777812 | Burkhardt et al. | Dec 1973 | |
4152088 | Vilan | May 1979 | |
4378848 | Milberger | May 1983 | |
4381175 | Erickson | Apr 1983 | |
4442902 | Doremus et al. | Apr 1984 | |
4603735 | Black | Aug 1986 | |
4705114 | Schroeder et al. | Nov 1987 | |
4723890 | Corteville et al. | Feb 1988 |
Number | Date | Country |
---|---|---|
3534723 | Jun 1987 | DEX |
8701159 | Feb 1987 | WOX |
Entry |
---|
World Oil, "Jet Pumping Oil Wells", vol. 197, No. 6, Nov., 1983, pp. 51-56. |