Number | Name | Date | Kind |
---|---|---|---|
2404341 | Zublin | Jul 1946 | |
3888319 | Bourne et al. | Jun 1975 | |
3963080 | Walker | Jun 1976 | |
4007797 | Jeter | Feb 1977 | |
4066137 | Frankle et al. | Jan 1978 | |
4227584 | Driver | Oct 1980 | |
4333539 | Lyons et al. | Jun 1982 | |
4365676 | Boyadjieff et al. | Dec 1982 | |
4396075 | Wood et al. | Aug 1983 | |
4402551 | Wood et al. | Sep 1983 | |
4415205 | Rehm et al. | Nov 1983 | |
4431069 | Dickinson | Feb 1984 | |
4432423 | Lyons | Feb 1984 |
Entry |
---|
Dellinger, "Directional Technology Will Extend Drilling Reach", 9/1980, pp. 153-169. |