DB

Douglas R. Buchanan

DC Dupont Canada: 1 patents #47 of 133Top 40%
📍 Francis, CA: #7 of 8 inventorsTop 90%
Overall (All Time): #3,917,261 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4977739 Method and apparatus for making composite yarn — 1990-12-18