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Patent applications and USPTO patent grants for De Keizer; Cornelis.The latest application filed is for "dredging arrangement for dredging material from an underwater bottom".
Patent | Date |
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Method and device for determining a height of a settled bed in a mixture in a loading space Grant 10,281,269 - De Keizer | 2019-05-07 |
Measurement device for performing measurement on a mixture of water and collected material Grant 10,060,092 - De Keizer August 28, 2 | 2018-08-28 |
Dredging Arrangement For Dredging Material From An Underwater Bottom App 20160194851 - De Keizer; Cornelis | 2016-07-07 |
Measurement Device For Performing Measurement On A Mixture Of Water And Collected Material App 20160053461 - DE KEIZER; Cornelis | 2016-02-25 |
Method And Device For Determining A Height Of A Settled Bed In A Mixture In A Loading Space App 20150198441 - De Keizer; Cornelis | 2015-07-16 |
Control system Grant 4,390,942 - de Keizer June 28, 1 | 1983-06-28 |
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