Number | Name | Date | Kind |
---|---|---|---|
2841961 | Lucas | Jul 1958 | |
3171259 | Roussel | Mar 1965 | |
3378086 | Kivisld | Apr 1968 | |
3718316 | Larralde et al. | Feb 1973 | |
3955621 | Webb | May 1976 | |
4004532 | Reynolds | Jan 1977 | |
4121806 | Iato et al. | Oct 1978 | |
4142584 | Brewer | Mar 1979 | |
4213720 | Portass | Jul 1980 |
Entry |
---|
Vetco Offshore, Inc., Catalog, pp. 5890, 5891. |
ETA Chapter from "The Technology of Offshore Drilling", Completion and Production, Compiled by ETA Offshore Seminars, Inc. |