Per Goran Grahn

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Lund, SE

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Patents Grantslast 30 patents

Information Patent Grant
Protective shield for a solar energy concentrator
- Patent number 4,502,466
- Issue date Mar 5, 1985
- United Stirling AB
- Per G. Grahn
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Hot gas engine heater head
- Patent number 4,117,679
- Issue date Oct 3, 1978
- Kommanditbolaget United Stirling (Sweden) AB & Co.
- Per Goran Grahn
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS