SV

Sidney John Vallans

📍 Accrington, GB: #1 of 3 inventorsTop 35%
Overall (1982): #30,645 of 81,411Top 40%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4309844 Production of artificial growing mediums David King 1982-01-12