WM

William R. Manning

CP Champion Spark Plug: 1 patents #2 of 6Top 35%
📍 Littleton, MA: #3 of 10 inventorsTop 30%
🗺 Massachusetts: #582 of 2,831 inventorsTop 25%
Overall (1989): #43,724 of 140,708Top 35%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4879260 Alumina-zirconia ceramic — 1989-11-07