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Patent applications and USPTO patent grants for Lehtonen; Heikki.The latest application filed is for "method and system for recycling concrete mass in a slipform casting process, and casting machine".
Patent | Date |
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Method and system for recycling concrete mass in a slipform casting process, and casting machine Grant 11,077,582 - Lehtonen , et al. August 3, 2 | 2021-08-03 |
Method And System For Recycling Concrete Mass In A Slipform Casting Process, And Casting Machine App 20190232523 - LEHTONEN; Heikki ;   et al. | 2019-08-01 |
Auger feeder for concrete mix, and slipform-casting apparatus Grant 8,784,088 - Seppanen , et al. July 22, 2 | 2014-07-22 |
Auger Feeder For Concrete Mix, Method Of Manufacturing The Auger Feeder, And Slipform-casting Apparatus App 20100260878 - SEPPANEN; Aimo ;   et al. | 2010-10-14 |
Method And Apparatus For Casting A Concrete Product App 20090295031 - LEHTONEN; Heikki ;   et al. | 2009-12-03 |
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