DG

David L. Groen

📍 Murray, UT: #1 of 20 inventorsTop 5%
🗺 Utah: #43 of 691 inventorsTop 7%
Overall (1994): #36,130 of 165,921Top 25%
2
Patents 1994

Issued Patents 1994

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5304036 Autogyro aircraft Henry J. Groen 1994-04-19
5301900 Autogyro aircraft Henry J. Groen 1994-04-12