JM

John F. McGraw

CT Carpenter Technology: 1 patents #5 of 14Top 40%
📍 Sinking Spring, PA: #2 of 3 inventorsTop 70%
🗺 Pennsylvania: #852 of 3,759 inventorsTop 25%
Overall (1989): #94,046 of 140,708Top 70%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4886640 Hot work tool steel with good temper resistance Harrison A. Garner, Jr., Raymond M. Hemphill, Michael L. Schmidt, Bruce A. Smith, David E. Wert 1989-12-12