DF

David Freer

📍 Forest, VA: #114 of 238 inventorsTop 50%
🗺 Virginia: #12,642 of 34,511 inventorsTop 40%
Overall (All Time): #2,252,235 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5943727 Foldable cleaning implement 1999-08-31
5430412 Amplifier with lossless feedback 1995-07-04