Number | Name | Date | Kind |
---|---|---|---|
3411454 | Arutunoff | Nov 1968 | |
3468258 | Arutunoff | Sep 1969 | |
3672795 | Arutunoff | Jun 1972 | |
4021137 | Zehren | May 1977 | |
4352394 | Zehren | Oct 1982 | |
4440221 | Taylor et al. | Apr 1984 | |
4529035 | Bayh, III | Jul 1985 |
Entry |
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Baker Packers Completion Systems Catalog, Baker Oil Tools Co., 1981, pp. 757 and 777, Product No. 818.05. |