Hänvisningar finns i följande patent|
| US5544453 | 9 nov 1993 | 13 aug 1996 | System Teeg AB | Foundation for a building structure | | US7690157 | 30 apr 2008 | 6 apr 2010 | | Secure data center having redundant cooling and blast protection for protecting computer servers by the positioning of air handling units, fiber optic cable and a fire suppression system | | US8109043 | 25 feb 2010 | 7 feb 2012 | | Secure data center having redundant cooling and blast protection for protecting computer servers by the positioning of air handling units, fiber optic cable and a fire suppressiion system |
|
