Birger Pettersson

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Alta, SE

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Patents Grantslast 30 patents

Information Patent Grant
Pack of heat transfer plates
- Patent number 4,953,629
- Issue date Sep 4, 1990
- Svenska Rotor Maskiner AB
- Kurt Karlsson
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Method for producing pressure pulses in a mass of gas and a device...
- Patent number 4,923,374
- Issue date May 8, 1990
- Svenska Rotor Maskiner AB
- Stig Lundin
- B08 - CLEANING
Information Patent Grant
Solar-energy collector that is protected against corrosion
- Patent number 4,569,330
- Issue date Feb 11, 1986
- Birger Pettersson
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Regenerative heat exchangers
- Patent number 4,449,573
- Issue date May 22, 1984
- Svenska Rotor Maskiner Aktiebolag
- Birger Pettersson
- F28 - HEAT EXCHANGE IN GENERAL