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Patent applications and USPTO patent grants for Frelier; Calvin A..The latest application filed is for "fluid flow channel scavenging system".
Patent | Date |
---|---|
Fluid flow channel and scavenger system Grant 8,584,403 - Frelier November 19, 2 | 2013-11-19 |
Fluid flow channel scavenging system App 20120168360 - Frelier; Calvin A. | 2012-07-05 |
Rain gutter drainage and debris removal system Grant 7,610,721 - Frelier November 3, 2 | 2009-11-03 |
Fiber optical laser collimating device Grant 5,937,123 - Frelier August 10, 1 | 1999-08-10 |
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