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Patent applications and USPTO patent grants for Hogman; Sten.The latest application filed is for "arrangement for connecting tube elements in a ventilation duct system".
Patent | Date |
---|---|
Arrangement For Connecting Tube Elements In A Ventilation Duct System App 20100187810 - Andersson; Pontus ;   et al. | 2010-07-29 |
Arrangement For Connecting Tube Elements In A Ventilation Duct System App 20100130119 - Andersson; Pontus ;   et al. | 2010-05-27 |
Coupling ring for ventilation ducts, and method of connecting ventilation ducts Grant 6,758,502 - Mattsson , et al. July 6, 2 | 2004-07-06 |
Coupling ring for ventilation ducts, and method of connecting ventilation ducts App 20030160452 - Mattsson, Lars-Ake ;   et al. | 2003-08-28 |
Coupling ring for ventilation ducts Grant D475,781 - Mattsson , et al. June 10, 2 | 2003-06-10 |
Coupling ring for ventilation ducts Grant D461,887 - Mattsson , et al. August 20, 2 | 2002-08-20 |
Coupling ring for ventilation ducts Grant D456,072 - Mattsson , et al. April 23, 2 | 2002-04-23 |
Coupling ring for ventilation ducts Grant D454,949 - Mattsson , et al. March 26, 2 | 2002-03-26 |
Coupling ring for ventilation ducts Grant D453,042 - Mattsson , et al. January 22, 2 | 2002-01-22 |
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