VV

Vello Valdna

📍 Tallinn, EE: #200 of 466 inventorsTop 45%
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1
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Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6254806 High efficiency polycrystalline phosphors and method of making same Roger D. Durst 2001-07-03