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Patent applications and USPTO patent grants for Beckon; Weir E..The latest application filed is for "reversed pulse cleaning filter".
Patent | Date |
---|---|
Reversed pulse cleaning filter Grant 4,818,261 - Beckon April 4, 1 | 1989-04-04 |
Top removal filter cartridge Grant 4,765,811 - Beckon August 23, 1 | 1988-08-23 |
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