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Patent applications and USPTO patent grants for Champ; Jamieson Edward.The latest application filed is for "sample extraction system for boreholes".
Patent | Date |
---|---|
Sample extraction system for boreholes Grant 7,222,668 - Belshaw, legal representative , et al. May 29, 2 | 2007-05-29 |
Sample extraction system for boreholes App 20040261992 - Belshaw, Douglas James ;   et al. | 2004-12-30 |
Sample extraction system for boreholes Grant 6,758,274 - Parent , et al. July 6, 2 | 2004-07-06 |
Expandable borehole packer Grant 6,581,682 - Parent , et al. June 24, 2 | 2003-06-24 |
Sample extraction system for boreholes App 20020134556 - Parent, John Howard C. ;   et al. | 2002-09-26 |
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