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Patent applications and USPTO patent grants for Keller; George J..The latest application filed is for "variable flow self-cleaning liquid distribution element and liquid distribution assembly employing a plurality of such elements".
Patent | Date |
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Variable flow self-cleaning liquid distribution element and liquid distribution assembly employing a plurality of such elements Grant 4,569,364 - Keller , et al. February 11, 1 | 1986-02-11 |
Apparatus For Liquid And Vapor Or Gas Mass Transfer Grant 3,729,179 - Keller April 24, 1 | 1973-04-24 |
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