Number | Name | Date | Kind |
---|---|---|---|
3354950 | Hyde | Nov 1967 | |
3504936 | Brown et al. | Apr 1970 | |
3764168 | Kisling et al. | Oct 1973 | |
3966236 | Vann | Jun 1976 | |
4040649 | Blackwell | Aug 1977 | |
4066282 | Vann | Jan 1978 | |
4074912 | Bilderbeek | Feb 1978 | |
4281858 | Bowyer | Aug 1981 |
Entry |
---|
Composite Catalogue of Oil Field Equipment and Services 1974-1975, p. 3931. |