JC

John Crawford

📍 Hyattsville, MD: #2 of 7 inventorsTop 30%
🗺 Maryland: #225 of 1,164 inventorsTop 20%
Overall (1989): #96,012 of 140,708Top 70%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4880539 Filter for filtering solids out of a liquid having a doctor blade wiping means Keith Crofut 1989-11-14