Erik Wrangel

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Jonkoping, SW

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Patents Grantslast 30 patents

Information Patent Grant
Humidity and heat exchanger apparatus, and method for its manufacture
- Patent number 4,038,059
- Issue date Jul 26, 1977
- Aktiebolaget Svenska Flaktfabriken
- Ove Strindehag
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Regenerative humidity and heat exchange apparatus
- Patent number 4,035,172
- Issue date Jul 12, 1977
- Aktiebolaget Svenska Flaktfabriken
- Ove Strindehag
- F24 - HEATING RANGES VENTILATING