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Patent applications and USPTO patent grants for Rong; Oliver.The latest application filed is for "grid bar for a bar screen of a filter unit, and filter unit equipped therewith".
Patent | Date |
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Grid bar for a bar screen of a filter unit, and filter unit equipped therewith Grant 10,258,907 - Rong , et al. | 2019-04-16 |
Grid Bar for a Bar Screen of a Filter Unit, and Filter Unit Equipped Therewith App 20170050126 - Rong; Oliver ;   et al. | 2017-02-23 |
Filter Segment for Use in a Filtration Device and a Circular Segment for Holding a Filter Segment App 20110056883 - KERL; THOMAS ;   et al. | 2011-03-10 |
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