DH

David Emest Hartley

📍 Libby, MT: #9 of 23 inventorsTop 40%
🗺 Montana: #1,498 of 3,198 inventorsTop 50%
Overall (All Time): #3,705,698 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5848489 Frame with level indicator Marcia G. Hartley 1998-12-15