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Patent applications and USPTO patent grants for Rivers; Richard D..The latest application filed is for "fluid filter housing and assembly".
Patent | Date |
---|---|
Fluid filter housing and assembly Grant 4,049,406 - Rivers September 20, 1 | 1977-09-20 |
Ceiling Filter System For Clean Room Grant 3,782,082 - Smith , et al. January 1, 1 | 1974-01-01 |
Carbon Filter Leak Detector Grant 3,765,225 - Rivers October 16, 1 | 1973-10-16 |
Pressure Relief Valve Grant 3,677,289 - Rivers , et al. July 18, 1 | 1972-07-18 |
Fluid-treating Cartridge Construction Grant 3,581,476 - Rivers June 1, 1 | 1971-06-01 |
Unit Filter Assembly Grant 3,576,095 - Rivers April 27, 1 | 1971-04-27 |
Filter Frame Latching Assembly Grant 3,576,096 - Rivers April 27, 1 | 1971-04-27 |
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