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Patent applications and USPTO patent grants for Fraenkische Rohrwerke Gebr. Kirchner GmbH & Co. KG.The latest application filed is for "two-shell structural system for constructing plantable steep embankments formed from several layers".
Patent | Date |
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Fluid duct, and flexible pipe for a fluid duct Grant 8,230,885 - Krauss , et al. July 31, 2 | 2012-07-31 |
Two-shell structural system for constructing plantable steep embankments formed from several layers Grant 8,104,996 - Goebel , et al. January 31, 2 | 2012-01-31 |
Two-shell Structural System For Constructing Plantable Steep Embankments Formed From Several Layers App 20110070036 - Goebel; Claus ;   et al. | 2011-03-24 |
Fluid Duct, And Flexible Pipe For A Fluid Duct App 20090308479 - Krauss; Manfred ;   et al. | 2009-12-17 |
Corrugated plastic pipe with fastening portion Grant 6,860,518 - Krauss , et al. March 1, 2 | 2005-03-01 |
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