DF

Douglas J. Frame

📍 Pontiac, MI: #4 of 17 inventorsTop 25%
🗺 Michigan: #416 of 1,972 inventorsTop 25%
Overall (1982): #68,906 of 81,411Top 85%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4338963 High temperature gate valve with fused silica blade — 1982-07-13