Number | Name | Date | Kind |
---|---|---|---|
2824612 | Lynes | Feb 1958 | |
4313495 | Brandell | Feb 1982 | |
4817723 | Ringgenvberg | Apr 1989 |
Entry |
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New Halliburton CR (Continuous Retrievable) Sampler, Nov. 1959. |
World Oil "New Test Tool Samples Several Zones in one Trip" May 1960. |