Sten Engwall

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Marsta, SE

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Patents Grantslast 30 patents

Information Patent Grant
Device for combustion of solid fuels
- Patent number 5,678,495
- Issue date Oct 21, 1997
- System Teeg AB
- Ulf Johansson
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES

Patents Applicationslast 30 patents

Information Patent Application
Heating System And A Method For Heating
- Publication number 20080164333
- Publication date Jul 10, 2008
- Semako AB
- Sten Engwall
- F24 - HEATING RANGES VENTILATING