Karl N. A. Nilsson

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Stockholm, SW

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Patents Grantslast 30 patents

Information Patent Grant
Arrangement for utilizing solar energy for heating buildings
- Patent number 4,006,856
- Issue date Feb 8, 1977
- Aktiebolaget Svenska Flaktfabriken
- Karl N. A. Nilsson
- F24 - HEATING RANGES VENTILATING