DG

David Grewell

EI Edison Welding Institute: 1 patents #1 of 6Top 20%
📍 Ames, IA: #13 of 72 inventorsTop 20%
🗺 Iowa: #134 of 609 inventorsTop 25%
Overall (1994): #145,778 of 165,921Top 90%
1
Patents 1994

Issued Patents 1994

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5313034 Thermoplastic welding Robert A. Grimm, Marc St. John 1994-05-17