DM

David J. Michael

DI Dresser Industries: 1 patents #8 of 50Top 20%
📍 Newton, MA: #26 of 109 inventorsTop 25%
🗺 Massachusetts: #582 of 2,831 inventorsTop 25%
Overall (1989): #122,335 of 140,708Top 90%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4847222 Basic refractory shapes Richard J. Knauss 1989-07-11