Lennart Widerby

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Jonkoping, SE

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Patents Grantslast 30 patents

Information Patent Grant
Exhaust air valve
- Patent number 4,512,356
- Issue date Apr 23, 1985
- Flakt Aktiebolag
- Lennart Widerby
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Apparatus for mounting a ventilation element in a ventilation conduit
- Patent number 4,482,267
- Issue date Nov 13, 1984
- Flakt Aktiebolag
- Lennart Widerby
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Air diffuser
- Patent number 4,320,695
- Issue date Mar 23, 1982
- AB Svenska Flaktfabriken
- Lennart Widerby
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Ventilation element with tubular connector for insertion into an op...
- Patent number 4,109,564
- Issue date Aug 29, 1978
- AB Svenska Flaktfabriken
- Lennart Widerby
- F24 - HEATING RANGES VENTILATING