WS

William M. Spira

📍 Burnsville, MN: #13 of 40 inventorsTop 35%
🗺 Minnesota: #813 of 3,156 inventorsTop 30%
Overall (1997): #182,723 of 185,788Top 100%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5636472 Apparatus for the continuous cultivation of aquatic macrophytes Paul W. Skillicorn 1997-06-10