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Patent applications and USPTO patent grants for Weaver; Christopher L..The latest application filed is for "model hccv hydrostatic closed circulation valve".
Patent | Date |
---|---|
Model HCCV hydrostatic closed circulation valve Grant 7,464,758 - Yeo , et al. December 16, 2 | 2008-12-16 |
Model HCCV hydrostatic closed circulation valve App 20060237191 - Yeo; Joseph C.H. ;   et al. | 2006-10-26 |
Model HCCV hydrostatic closed circulation valve Grant 7,063,152 - Yeo , et al. June 20, 2 | 2006-06-20 |
Model HCCV hydrostatic closed circulation valve App 20050072575 - Yeo, Joseph C.H. ;   et al. | 2005-04-07 |
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