PG

Per G. Grahn

UA United Stirling Ab: 1 patents #4 of 11Top 40%
Overall (All Time): #4,010,983 of 4,157,543Top 100%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4502466 Protective shield for a solar energy concentrator — 1985-03-05