RD

Ronald W. DuFries

MC Morgan Construction: 2 patents #24 of 90Top 30%
📍 Lowell, MA: #304 of 739 inventorsTop 45%
🗺 Massachusetts: #42,150 of 88,656 inventorsTop 50%
Overall (All Time): #2,349,304 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4604883 Mass flow control system for wire drawing machine William R. Schaetzke 1986-08-12
4511096 Spinner drive for double block wire drawing machine — 1985-04-16