DM

Douglas Matthew Mergen

📍 Deadwood, SD: #1 of 1 inventorsTop 100%
🗺 South Dakota: #16 of 82 inventorsTop 20%
Overall (1997): #47,062 of 185,788Top 30%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5649790 Friction rock stabilizer and method for insertion Dean Allen Vilhauer 1997-07-22